./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu --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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:56,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:56,712 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:46:56,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:56,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:56,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:56,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:56,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:56,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:56,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:56,774 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:56,774 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:46:56,775 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:46:56,777 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:46:56,777 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:46:56,778 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:46:56,778 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:46:56,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:56,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:46:56,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:56,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:56,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:56,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:56,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:46:56,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:46:56,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:46:56,783 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:56,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:56,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:56,785 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:46:56,786 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:56,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:56,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:56,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:56,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:56,788 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:46:56,788 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_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2023-11-19 07:46:57,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:57,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:57,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:57,175 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:57,176 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:57,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-invgen/id_build.i [2023-11-19 07:47:00,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:00,628 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:00,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/sv-benchmarks/c/loop-invgen/id_build.i [2023-11-19 07:47:00,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/data/1a74084a1/85dcce9b39404169a95ae89d7775a478/FLAGc7c34808f [2023-11-19 07:47:00,662 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/data/1a74084a1/85dcce9b39404169a95ae89d7775a478 [2023-11-19 07:47:00,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:00,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:00,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:00,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:00,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:00,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:00,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d09cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00, skipping insertion in model container [2023-11-19 07:47:00,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:00,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:00,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:00,936 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:00,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:00,967 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:00,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00 WrapperNode [2023-11-19 07:47:00,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:00,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:00,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:00,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:00,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:00,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,003 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 53 [2023-11-19 07:47:01,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:01,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:01,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:01,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:01,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:01,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:01,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:01,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:01,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (1/1) ... [2023-11-19 07:47:01,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:01,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:01,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:01,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:01,249 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:01,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:01,459 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:01,466 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:01,466 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:47:01,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:01 BoogieIcfgContainer [2023-11-19 07:47:01,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:01,471 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:47:01,471 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:47:01,475 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:47:01,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:47:01,476 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:47:00" (1/3) ... [2023-11-19 07:47:01,478 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c8028e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:47:01, skipping insertion in model container [2023-11-19 07:47:01,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:47:01,478 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:00" (2/3) ... [2023-11-19 07:47:01,479 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c8028e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:47:01, skipping insertion in model container [2023-11-19 07:47:01,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:47:01,480 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:01" (3/3) ... [2023-11-19 07:47:01,481 INFO L332 chiAutomizerObserver]: Analyzing ICFG id_build.i [2023-11-19 07:47:01,536 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:47:01,537 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:47:01,537 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:47:01,537 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:47:01,537 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:47:01,537 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:47:01,538 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:47:01,538 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:47:01,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2023-11-19 07:47:01,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-19 07:47:01,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:01,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:01,570 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:47:01,570 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:47:01,570 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:47:01,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2023-11-19 07:47:01,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-19 07:47:01,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:01,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:01,574 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:47:01,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:47:01,584 INFO L748 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 16#L27-3true [2023-11-19 07:47:01,584 INFO L750 eck$LassoCheckResult]: Loop: 16#L27-3true assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 17#L28-3true assume !(main_~j~0#1 < 8); 10#L27-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 16#L27-3true [2023-11-19 07:47:01,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,591 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:47:01,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:01,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131413239] [2023-11-19 07:47:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:01,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:01,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:01,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash 39955, now seen corresponding path program 1 times [2023-11-19 07:47:01,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:01,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598336434] [2023-11-19 07:47:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:01,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:01,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598336434] [2023-11-19 07:47:01,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598336434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:01,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:01,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:01,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768805876] [2023-11-19 07:47:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:01,794 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:47:01,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:01,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:01,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:01,839 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2023-11-19 07:47:01,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:01,879 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-11-19 07:47:01,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2023-11-19 07:47:01,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-19 07:47:01,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 16 states and 17 transitions. [2023-11-19 07:47:01,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-19 07:47:01,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-19 07:47:01,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-19 07:47:01,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:01,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-19 07:47:01,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-19 07:47:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2023-11-19 07:47:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 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) [2023-11-19 07:47:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-19 07:47:01,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-19 07:47:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:01,927 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-19 07:47:01,927 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:47:01,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2023-11-19 07:47:01,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-19 07:47:01,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:01,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:01,931 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:47:01,931 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:01,931 INFO L748 eck$LassoCheckResult]: Stem: 62#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 63#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 64#L27-3 [2023-11-19 07:47:01,932 INFO L750 eck$LassoCheckResult]: Loop: 64#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 65#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 57#L18 assume !(0 == __VERIFIER_assert_~cond#1); 58#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 59#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 60#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 61#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 66#L28-3 assume !(main_~j~0#1 < 8); 67#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 64#L27-3 [2023-11-19 07:47:01,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,933 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-19 07:47:01,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:01,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890899806] [2023-11-19 07:47:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:01,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:01,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:01,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,961 INFO L85 PathProgramCache]: Analyzing trace with hash -401152879, now seen corresponding path program 1 times [2023-11-19 07:47:01,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:01,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123484736] [2023-11-19 07:47:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:02,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123484736] [2023-11-19 07:47:02,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123484736] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:02,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274977766] [2023-11-19 07:47:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:02,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:02,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:02,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:02,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:47:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:02,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:02,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:02,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274977766] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:02,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:47:02,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-19 07:47:02,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666431864] [2023-11-19 07:47:02,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:02,207 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:47:02,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:02,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:02,208 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:02,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:02,242 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2023-11-19 07:47:02,243 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2023-11-19 07:47:02,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2023-11-19 07:47:02,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2023-11-19 07:47:02,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-11-19 07:47:02,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-19 07:47:02,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2023-11-19 07:47:02,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:02,247 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-19 07:47:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2023-11-19 07:47:02,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 07:47:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 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) [2023-11-19 07:47:02,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2023-11-19 07:47:02,251 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-19 07:47:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:02,252 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-19 07:47:02,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:47:02,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 30 transitions. [2023-11-19 07:47:02,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2023-11-19 07:47:02,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:02,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:02,256 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:47:02,256 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-11-19 07:47:02,257 INFO L748 eck$LassoCheckResult]: Stem: 160#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 162#L27-3 [2023-11-19 07:47:02,257 INFO L750 eck$LassoCheckResult]: Loop: 162#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 163#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 182#L18 assume !(0 == __VERIFIER_assert_~cond#1); 156#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 157#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 158#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 159#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 164#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 154#L18 assume !(0 == __VERIFIER_assert_~cond#1); 155#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 181#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 180#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 179#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 178#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 177#L18 assume !(0 == __VERIFIER_assert_~cond#1); 176#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 175#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 174#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 173#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 172#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 167#L18 assume !(0 == __VERIFIER_assert_~cond#1); 171#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 170#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 169#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 168#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 166#L28-3 assume !(main_~j~0#1 < 8); 165#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 162#L27-3 [2023-11-19 07:47:02,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-19 07:47:02,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:02,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518710164] [2023-11-19 07:47:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:02,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:02,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:02,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:02,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash -620742901, now seen corresponding path program 2 times [2023-11-19 07:47:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:02,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692816699] [2023-11-19 07:47:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:02,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:02,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:02,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692816699] [2023-11-19 07:47:02,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692816699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:02,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355318845] [2023-11-19 07:47:02,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:47:02,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:02,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:02,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:02,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:47:02,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:47:02,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:47:02,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:47:02,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:02,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:03,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355318845] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:03,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:47:03,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2023-11-19 07:47:03,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822024243] [2023-11-19 07:47:03,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:03,027 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:47:03,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:03,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:47:03,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:47:03,029 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 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) [2023-11-19 07:47:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:03,095 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2023-11-19 07:47:03,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 54 transitions. [2023-11-19 07:47:03,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2023-11-19 07:47:03,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 54 transitions. [2023-11-19 07:47:03,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2023-11-19 07:47:03,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2023-11-19 07:47:03,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 54 transitions. [2023-11-19 07:47:03,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:03,104 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2023-11-19 07:47:03,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 54 transitions. [2023-11-19 07:47:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-19 07:47:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 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) [2023-11-19 07:47:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2023-11-19 07:47:03,109 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2023-11-19 07:47:03,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:47:03,114 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 54 transitions. [2023-11-19 07:47:03,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:47:03,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 54 transitions. [2023-11-19 07:47:03,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2023-11-19 07:47:03,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:03,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:03,124 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:47:03,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 8, 8, 8, 8, 1, 1, 1] [2023-11-19 07:47:03,125 INFO L748 eck$LassoCheckResult]: Stem: 411#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 412#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 413#L27-3 [2023-11-19 07:47:03,126 INFO L750 eck$LassoCheckResult]: Loop: 413#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 414#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 457#L18 assume !(0 == __VERIFIER_assert_~cond#1); 407#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 408#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 409#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 410#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 415#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 405#L18 assume !(0 == __VERIFIER_assert_~cond#1); 406#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 456#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 455#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 454#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 453#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 452#L18 assume !(0 == __VERIFIER_assert_~cond#1); 451#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 450#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 449#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 448#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 447#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 446#L18 assume !(0 == __VERIFIER_assert_~cond#1); 445#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 444#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 443#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 442#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 441#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 440#L18 assume !(0 == __VERIFIER_assert_~cond#1); 439#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 438#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 437#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 436#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 435#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 434#L18 assume !(0 == __VERIFIER_assert_~cond#1); 433#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 432#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 431#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 430#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 429#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 428#L18 assume !(0 == __VERIFIER_assert_~cond#1); 427#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 426#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 425#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 424#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 423#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 418#L18 assume !(0 == __VERIFIER_assert_~cond#1); 422#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 421#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 420#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 419#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 417#L28-3 assume !(main_~j~0#1 < 8); 416#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 413#L27-3 [2023-11-19 07:47:03,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2023-11-19 07:47:03,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:03,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925090936] [2023-11-19 07:47:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:03,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2044958205, now seen corresponding path program 3 times [2023-11-19 07:47:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:03,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031806480] [2023-11-19 07:47:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:03,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,262 INFO L85 PathProgramCache]: Analyzing trace with hash -837778687, now seen corresponding path program 1 times [2023-11-19 07:47:03,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:03,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12812656] [2023-11-19 07:47:03,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:04,331 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:47:04,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:47:04,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:47:04,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:47:04,332 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:47:04,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:47:04,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:47:04,334 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2023-11-19 07:47:04,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:47:04,334 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:47:04,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,481 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:47:04,482 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:47:04,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:47:04,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:04,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:04,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:04,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:04,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:47:04,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:04,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:04,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:04,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=8} Honda state: {ULTIMATE.start_main_~j~0#1=8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:04,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:47:04,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:04,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:04,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:47:04,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:47:04,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:04,752 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:47:04,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,759 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:47:04,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:47:04,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:47:04,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:47:04,759 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:47:04,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:47:04,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:47:04,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2023-11-19 07:47:04,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:47:04,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:47:04,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:04,838 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:47:04,843 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:47:04,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,852 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 [2023-11-19 07:47:04,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:04,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:04,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:04,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:04,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:04,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:04,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:04,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:47:04,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:47:04,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,928 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 [2023-11-19 07:47:04,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:04,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:04,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:04,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:04,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:04,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:04,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:04,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:47:04,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:47:04,958 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:47:04,958 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:47:04,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:04,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,961 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,963 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:47:04,964 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:47:04,964 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:47:04,964 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-19 07:47:04,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:47:04,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,988 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:47:05,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:05,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:05,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-19 07:47:05,302 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 [2023-11-19 07:47:05,303 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2 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) [2023-11-19 07:47:05,342 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2. 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 104 states and 107 transitions. Complement of second has 4 states. [2023-11-19 07:47:05,342 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 [2023-11-19 07:47:05,343 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) [2023-11-19 07:47:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-19 07:47:05,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 51 letters. [2023-11-19 07:47:05,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:05,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 53 letters. Loop has 51 letters. [2023-11-19 07:47:05,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:05,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 102 letters. [2023-11-19 07:47:05,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:05,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 107 transitions. [2023-11-19 07:47:05,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:47:05,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 103 states and 106 transitions. [2023-11-19 07:47:05,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2023-11-19 07:47:05,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2023-11-19 07:47:05,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 106 transitions. [2023-11-19 07:47:05,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:47:05,355 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 106 transitions. [2023-11-19 07:47:05,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 106 transitions. [2023-11-19 07:47:05,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2023-11-19 07:47:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.05) internal successors, (63), 59 states have internal predecessors, (63), 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) [2023-11-19 07:47:05,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2023-11-19 07:47:05,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-19 07:47:05,361 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-19 07:47:05,361 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:47:05,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 63 transitions. [2023-11-19 07:47:05,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:47:05,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:05,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:05,363 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:47:05,363 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:05,363 INFO L748 eck$LassoCheckResult]: Stem: 751#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 752#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 753#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 755#L28-3 [2023-11-19 07:47:05,363 INFO L750 eck$LassoCheckResult]: Loop: 755#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 740#L18 assume !(0 == __VERIFIER_assert_~cond#1); 741#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 744#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 746#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 747#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 755#L28-3 [2023-11-19 07:47:05,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2023-11-19 07:47:05,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912151907] [2023-11-19 07:47:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:05,369 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:05,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:05,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1433472511, now seen corresponding path program 1 times [2023-11-19 07:47:05,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148602174] [2023-11-19 07:47:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:05,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:05,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:05,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,385 INFO L85 PathProgramCache]: Analyzing trace with hash -174789083, now seen corresponding path program 1 times [2023-11-19 07:47:05,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598449350] [2023-11-19 07:47:05,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:05,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:05,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:05,436 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:47:05,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:47:05,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:47:05,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:47:05,436 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:47:05,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:47:05,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:47:05,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2023-11-19 07:47:05,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:47:05,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:47:05,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,483 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:47:05,483 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:47:05,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:05,487 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:05,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:05,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:05,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:47:05,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:05,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:05,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:05,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:05,548 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:05,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:05,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:05,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:47:05,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:05,601 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:05,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:47:05,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:47:05,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:05,665 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:47:05,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:05,672 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:47:05,672 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:47:05,672 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:47:05,672 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:47:05,672 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:47:05,672 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,672 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:47:05,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:47:05,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2023-11-19 07:47:05,673 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:47:05,673 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:47:05,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:05,726 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:47:05,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:47:05,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:05,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:05,740 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 [2023-11-19 07:47:05,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:05,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:05,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:05,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:05,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:05,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:05,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:05,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:47:05,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:47:05,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:05,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:05,785 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:05,791 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 [2023-11-19 07:47:05,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:47:05,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:05,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:05,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:05,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:05,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:05,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:05,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:05,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:47:05,818 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:47:05,818 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:47:05,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:05,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:05,820 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:05,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:47:05,830 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:47:05,835 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:47:05,835 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:47:05,835 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2023-11-19 07:47:05,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:05,856 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:47:05,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:05,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:05,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:05,941 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 [2023-11-19 07:47:05,941 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 165 states and 172 transitions. Complement of second has 7 states. [2023-11-19 07:47:05,971 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 [2023-11-19 07:47:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-11-19 07:47:05,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-19 07:47:05,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:05,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-19 07:47:05,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:05,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 12 letters. [2023-11-19 07:47:05,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:05,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 172 transitions. [2023-11-19 07:47:05,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:47:05,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 111 states and 115 transitions. [2023-11-19 07:47:05,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-19 07:47:05,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 07:47:05,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 115 transitions. [2023-11-19 07:47:05,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:47:05,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 115 transitions. [2023-11-19 07:47:05,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 115 transitions. [2023-11-19 07:47:05,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 60. [2023-11-19 07:47:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 59 states have internal predecessors, (62), 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) [2023-11-19 07:47:05,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2023-11-19 07:47:05,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 62 transitions. [2023-11-19 07:47:05,990 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 62 transitions. [2023-11-19 07:47:05,990 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:47:05,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 62 transitions. [2023-11-19 07:47:05,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:47:05,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:47:05,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:47:05,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1] [2023-11-19 07:47:05,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:05,994 INFO L748 eck$LassoCheckResult]: Stem: 1026#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1027#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 1028#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1029#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1074#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1020#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1021#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1024#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1025#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1032#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1017#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1018#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1073#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1072#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1071#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1070#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1069#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1068#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1067#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1066#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1065#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1064#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1063#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1062#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1061#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1060#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1059#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1058#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1057#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1056#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1055#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1054#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1053#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1052#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1051#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1050#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1049#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1048#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1047#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1046#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1045#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1044#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1043#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1042#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1041#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1040#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1035#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1039#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1038#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1037#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1036#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1034#L28-3 assume !(main_~j~0#1 < 8); 1033#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1030#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1031#L28-3 [2023-11-19 07:47:05,994 INFO L750 eck$LassoCheckResult]: Loop: 1031#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1015#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1016#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1019#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1022#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1023#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1031#L28-3 [2023-11-19 07:47:05,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,995 INFO L85 PathProgramCache]: Analyzing trace with hash -201335511, now seen corresponding path program 2 times [2023-11-19 07:47:05,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574358912] [2023-11-19 07:47:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:06,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:06,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:06,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:06,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1433472511, now seen corresponding path program 2 times [2023-11-19 07:47:06,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:06,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101446519] [2023-11-19 07:47:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:06,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:06,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:06,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:06,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:06,049 INFO L85 PathProgramCache]: Analyzing trace with hash 324037927, now seen corresponding path program 3 times [2023-11-19 07:47:06,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:06,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231772032] [2023-11-19 07:47:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:06,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:06,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:06,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:06,167 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:47:06,168 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:47:06,168 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:47:06,168 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:47:06,168 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:47:06,168 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,168 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:47:06,168 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:47:06,169 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2023-11-19 07:47:06,169 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:47:06,169 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:47:06,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,222 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:47:06,222 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:47:06,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,227 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:06,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:06,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:47:06,290 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:06,290 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:06,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-19 07:47:06,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,313 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:47:06,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:06,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:06,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:06,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:06,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,372 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:06,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:06,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:47:06,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:06,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:06,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,436 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:06,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:06,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:47:06,470 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:47:06,470 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:47:06,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,498 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:47:06,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:06,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:47:06,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,558 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:47:06,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:47:06,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:47:06,609 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:47:06,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,618 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:47:06,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:47:06,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:47:06,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:47:06,619 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:47:06,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:47:06,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:47:06,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2023-11-19 07:47:06,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:47:06,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:47:06,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:47:06,670 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:47:06,670 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:47:06,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,672 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,677 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 [2023-11-19 07:47:06,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:06,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:06,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:06,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:06,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:06,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:06,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:06,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:47:06,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:47:06,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,723 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,725 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 [2023-11-19 07:47:06,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:47:06,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:06,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:06,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:06,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:06,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:06,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:06,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:06,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:47:06,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,750 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:47:06,752 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 [2023-11-19 07:47:06,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:06,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:06,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:06,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:06,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:06,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:06,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:06,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:47:06,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,807 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,811 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 [2023-11-19 07:47:06,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:06,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:06,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:06,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:06,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:06,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:06,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:06,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:47:06,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:47:06,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,866 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,871 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 [2023-11-19 07:47:06,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:47:06,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:47:06,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:47:06,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:47:06,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:47:06,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:47:06,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:47:06,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:47:06,899 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:47:06,906 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:47:06,906 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:47:06,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:47:06,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:06,911 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:06,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:47:06,913 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:47:06,914 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:47:06,914 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2023-11-19 07:47:06,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:47:06,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,938 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:47:06,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:06,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:07,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:07,110 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 [2023-11-19 07:47:07,110 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-19 07:47:07,142 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 153 states and 158 transitions. Complement of second has 7 states. [2023-11-19 07:47:07,142 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 [2023-11-19 07:47:07,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-19 07:47:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-11-19 07:47:07,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2023-11-19 07:47:07,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:07,147 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:47:07,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:07,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:07,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:07,295 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 [2023-11-19 07:47:07,295 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-19 07:47:07,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 153 states and 158 transitions. Complement of second has 7 states. [2023-11-19 07:47:07,318 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 [2023-11-19 07:47:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-19 07:47:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-11-19 07:47:07,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2023-11-19 07:47:07,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:07,322 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:47:07,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:07,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:07,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:07,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:07,477 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 [2023-11-19 07:47:07,477 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-19 07:47:07,500 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 108 states and 112 transitions. Complement of second has 6 states. [2023-11-19 07:47:07,500 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 [2023-11-19 07:47:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2023-11-19 07:47:07,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-19 07:47:07,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 6 letters. [2023-11-19 07:47:07,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:07,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 60 letters. Loop has 6 letters. [2023-11-19 07:47:07,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:07,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 12 letters. [2023-11-19 07:47:07,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:47:07,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 112 transitions. [2023-11-19 07:47:07,504 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:47:07,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 0 states and 0 transitions. [2023-11-19 07:47:07,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:47:07,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:47:07,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:47:07,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:07,505 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:47:07,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:47:07,506 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:47:07,506 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:47:07,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:47:07,506 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:47:07,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:47:07,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:47:07 BoogieIcfgContainer [2023-11-19 07:47:07,513 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:47:07,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:07,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:07,514 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:07,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:01" (3/4) ... [2023-11-19 07:47:07,517 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:47:07,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:07,518 INFO L158 Benchmark]: Toolchain (without parser) took 6848.86ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 116.7MB in the beginning and 89.3MB in the end (delta: 27.4MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2023-11-19 07:47:07,519 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 109.1MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:07,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.27ms. Allocated memory is still 157.3MB. Free memory was 116.4MB in the beginning and 106.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:47:07,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.18ms. Allocated memory is still 157.3MB. Free memory was 106.1MB in the beginning and 104.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:07,520 INFO L158 Benchmark]: Boogie Preprocessor took 34.24ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 103.7MB in the end (delta: 975.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:07,520 INFO L158 Benchmark]: RCFGBuilder took 427.78ms. Allocated memory is still 157.3MB. Free memory was 103.7MB in the beginning and 122.1MB in the end (delta: -18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:47:07,521 INFO L158 Benchmark]: BuchiAutomizer took 6042.79ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 122.1MB in the beginning and 89.3MB in the end (delta: 32.8MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2023-11-19 07:47:07,521 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 188.7MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:07,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 109.1MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.27ms. Allocated memory is still 157.3MB. Free memory was 116.4MB in the beginning and 106.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.18ms. Allocated memory is still 157.3MB. Free memory was 106.1MB in the beginning and 104.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.24ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 103.7MB in the end (delta: 975.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.78ms. Allocated memory is still 157.3MB. Free memory was 103.7MB in the beginning and 122.1MB in the end (delta: -18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6042.79ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 122.1MB in the beginning and 89.3MB in the end (delta: 32.8MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 188.7MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-1 * i) + nlen) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * j) + 15) and consists of 4 locations. One nondeterministic module has affine ranking function ((-2 * j) + 15) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 7 iterations. TraceHistogramMax:8. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 99 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 176/176 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 86 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:47:07,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:07,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:47:07,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:08,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0505aed2-2462-45e8-8895-7b4a32367fb1/bin/uautomizer-verify-uCwYo4JHxu/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