./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/hh2012-ex3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/hh2012-ex3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c7177334f88b94ca4ee99044935e396702561856a6f48616f98f91aafc609bb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:36:12,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:36:12,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:36:12,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:36:12,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:36:12,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:36:12,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:36:12,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:36:12,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:36:12,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:36:12,743 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:36:12,744 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:36:12,745 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:36:12,747 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:36:12,748 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:36:12,748 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:36:12,749 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:36:12,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:36:12,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:36:12,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:36:12,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:36:12,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:36:12,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:36:12,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:36:12,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:36:12,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:36:12,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:36:12,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:36:12,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:36:12,756 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:36:12,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:36:12,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:36:12,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:36:12,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:36:12,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:36:12,760 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:36:12,760 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_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c7177334f88b94ca4ee99044935e396702561856a6f48616f98f91aafc609bb [2023-11-06 22:36:13,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:36:13,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:36:13,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:36:13,133 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:36:13,133 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:36:13,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loop-lit/hh2012-ex3.i [2023-11-06 22:36:16,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:16,656 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:16,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/sv-benchmarks/c/loop-lit/hh2012-ex3.i [2023-11-06 22:36:16,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/data/b9279c10b/eb118b70dc074b24b6045f0cb0f340da/FLAGdbf731d45 [2023-11-06 22:36:16,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/data/b9279c10b/eb118b70dc074b24b6045f0cb0f340da [2023-11-06 22:36:16,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:16,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:16,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:16,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:16,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:16,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:16" (1/1) ... [2023-11-06 22:36:16,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670bb2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:16, skipping insertion in model container [2023-11-06 22:36:16,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:16" (1/1) ... [2023-11-06 22:36:16,732 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:16,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:17,017 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:17,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:17,059 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:17,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17 WrapperNode [2023-11-06 22:36:17,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:17,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:17,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:17,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:17,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,113 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 11, calls inlined = 18, statements flattened = 100 [2023-11-06 22:36:17,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:17,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:17,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:17,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:17,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:17,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:17,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:17,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:17,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (1/1) ... [2023-11-06 22:36:17,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:17,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:17,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:17,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:17,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:17,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:17,359 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:17,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:17,628 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:17,635 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:17,636 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:36:17,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:17 BoogieIcfgContainer [2023-11-06 22:36:17,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:17,640 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:36:17,640 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:36:17,644 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:36:17,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:36:17,645 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:36:16" (1/3) ... [2023-11-06 22:36:17,646 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56e71899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:36:17, skipping insertion in model container [2023-11-06 22:36:17,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:36:17,646 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:17" (2/3) ... [2023-11-06 22:36:17,647 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56e71899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:36:17, skipping insertion in model container [2023-11-06 22:36:17,647 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:36:17,647 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:17" (3/3) ... [2023-11-06 22:36:17,649 INFO L332 chiAutomizerObserver]: Analyzing ICFG hh2012-ex3.i [2023-11-06 22:36:17,738 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:36:17,739 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:36:17,739 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:36:17,739 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:36:17,739 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:36:17,740 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:36:17,740 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:36:17,741 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:36:17,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:17,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2023-11-06 22:36:17,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:36:17,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:36:17,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:36:17,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:17,794 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:36:17,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:17,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2023-11-06 22:36:17,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:36:17,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:36:17,809 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:36:17,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:17,819 INFO L748 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 24#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 46#L16-2true [2023-11-06 22:36:17,820 INFO L750 eck$LassoCheckResult]: Loop: 46#L16-2true assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 28#L18-2true assume !(main_~j~0#1 < 4); 30#L18-3true assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 23#L13-16true assume !(0 == __VERIFIER_assert_~cond#1); 13#L13-19true 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 50#L13-20true assume !(0 == __VERIFIER_assert_~cond#1); 39#L13-23true 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 34#L13-24true assume !(0 == __VERIFIER_assert_~cond#1); 18#L13-27true 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 25#L13-28true assume !(0 == __VERIFIER_assert_~cond#1); 42#L13-31true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - main_~j~0#1);havoc main_~j~0#1; 46#L16-2true [2023-11-06 22:36:17,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:36:17,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:17,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140929723] [2023-11-06 22:36:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:17,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:17,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:18,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:18,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:18,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1135295544, now seen corresponding path program 1 times [2023-11-06 22:36:18,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:18,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341591090] [2023-11-06 22:36:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:18,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341591090] [2023-11-06 22:36:18,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341591090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:18,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348422612] [2023-11-06 22:36:18,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:18,153 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:36:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:18,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:36:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:36:18,190 INFO L87 Difference]: Start difference. First operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 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 3.6666666666666665) internal successors, (11), 2 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) [2023-11-06 22:36:18,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:18,235 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2023-11-06 22:36:18,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 43 transitions. [2023-11-06 22:36:18,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2023-11-06 22:36:18,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 22 states and 23 transitions. [2023-11-06 22:36:18,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-06 22:36:18,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-06 22:36:18,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 23 transitions. [2023-11-06 22:36:18,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:18,248 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-06 22:36:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 23 transitions. [2023-11-06 22:36:18,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-06 22:36:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-11-06 22:36:18,283 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-06 22:36:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:36:18,290 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-06 22:36:18,290 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:36:18,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 23 transitions. [2023-11-06 22:36:18,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2023-11-06 22:36:18,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:36:18,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:36:18,293 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:36:18,293 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:18,294 INFO L748 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 108#L16-2 [2023-11-06 22:36:18,294 INFO L750 eck$LassoCheckResult]: Loop: 108#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 115#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 114#L13 assume !(0 == __VERIFIER_assert_~cond#1); 105#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 106#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 111#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 112#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 113#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 116#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 120#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 121#L18-2 assume !(main_~j~0#1 < 4); 117#L18-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 102#L13-16 assume !(0 == __VERIFIER_assert_~cond#1); 100#L13-19 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 101#L13-20 assume !(0 == __VERIFIER_assert_~cond#1); 103#L13-23 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 104#L13-24 assume !(0 == __VERIFIER_assert_~cond#1); 119#L13-27 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 110#L13-28 assume !(0 == __VERIFIER_assert_~cond#1); 109#L13-31 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - main_~j~0#1);havoc main_~j~0#1; 108#L16-2 [2023-11-06 22:36:18,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:18,295 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 22:36:18,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:18,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070901297] [2023-11-06 22:36:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:18,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:18,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:18,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:18,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:18,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1841154240, now seen corresponding path program 1 times [2023-11-06 22:36:18,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:18,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510752365] [2023-11-06 22:36:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:18,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:18,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:18,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510752365] [2023-11-06 22:36:18,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510752365] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:36:18,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398923076] [2023-11-06 22:36:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:18,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:36:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:18,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:36:18,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:36:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:18,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:36:18,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:18,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:36:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:18,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398923076] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:36:18,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:36:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:36:18,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456445372] [2023-11-06 22:36:18,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:36:18,791 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:36:18,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:36:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:36:18,794 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:18,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:36:18,913 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2023-11-06 22:36:18,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 50 transitions. [2023-11-06 22:36:18,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2023-11-06 22:36:18,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 50 transitions. [2023-11-06 22:36:18,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2023-11-06 22:36:18,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-11-06 22:36:18,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 50 transitions. [2023-11-06 22:36:18,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:18,919 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 50 transitions. [2023-11-06 22:36:18,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 50 transitions. [2023-11-06 22:36:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-06 22:36:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:18,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2023-11-06 22:36:18,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 50 transitions. [2023-11-06 22:36:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:36:18,938 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 50 transitions. [2023-11-06 22:36:18,938 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:36:18,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 50 transitions. [2023-11-06 22:36:18,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2023-11-06 22:36:18,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:36:18,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:36:18,942 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:36:18,942 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:18,943 INFO L748 eck$LassoCheckResult]: Stem: 312#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 301#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 302#L16-2 [2023-11-06 22:36:18,943 INFO L750 eck$LassoCheckResult]: Loop: 302#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 313#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 342#L13 assume !(0 == __VERIFIER_assert_~cond#1); 341#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 316#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 305#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 306#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 307#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 310#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 315#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 309#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 308#L13 assume !(0 == __VERIFIER_assert_~cond#1); 299#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 300#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 340#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 339#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 338#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 317#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 318#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 337#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 336#L13 assume !(0 == __VERIFIER_assert_~cond#1); 335#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 334#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 333#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 332#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 331#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 330#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 329#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 328#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 320#L13 assume !(0 == __VERIFIER_assert_~cond#1); 327#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 326#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 325#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 324#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 323#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 322#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 321#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 319#L18-2 assume !(main_~j~0#1 < 4); 311#L18-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 296#L13-16 assume !(0 == __VERIFIER_assert_~cond#1); 294#L13-19 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 295#L13-20 assume !(0 == __VERIFIER_assert_~cond#1); 297#L13-23 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 298#L13-24 assume !(0 == __VERIFIER_assert_~cond#1); 314#L13-27 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 303#L13-28 assume !(0 == __VERIFIER_assert_~cond#1); 304#L13-31 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - main_~j~0#1);havoc main_~j~0#1; 302#L16-2 [2023-11-06 22:36:18,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-06 22:36:18,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:18,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471084077] [2023-11-06 22:36:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:18,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:18,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:18,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:18,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:18,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1028574776, now seen corresponding path program 2 times [2023-11-06 22:36:18,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:18,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114300581] [2023-11-06 22:36:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:18,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:19,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:19,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:19,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:19,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1757615670, now seen corresponding path program 1 times [2023-11-06 22:36:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:19,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42112925] [2023-11-06 22:36:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:19,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:19,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:20,854 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:36:20,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:36:20,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:36:20,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:36:20,855 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:36:20,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:20,856 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:36:20,856 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:36:20,856 INFO L133 ssoRankerPreferences]: Filename of dumped script: hh2012-ex3.i_Iteration3_Loop [2023-11-06 22:36:20,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:36:20,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:36:20,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:20,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:20,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:20,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:20,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:20,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:20,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:36:20,972 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:36:20,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:36:21,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:21,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:21,041 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:36:21,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:21,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:36:21,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:21,133 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: [] [2023-11-06 22:36:21,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:36:21,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:21,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:21,175 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: [] [2023-11-06 22:36:21,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,190 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:36:21,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:21,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:21,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:36:21,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:36:21,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:21,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:21,276 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:36:21,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-06 22:36:21,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:36:21,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:21,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,311 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:36:21,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:36:21,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:21,378 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:36:21,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,392 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:36:21,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:36:21,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:36:21,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:36:21,393 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:36:21,393 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,393 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:36:21,393 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:36:21,393 INFO L133 ssoRankerPreferences]: Filename of dumped script: hh2012-ex3.i_Iteration3_Loop [2023-11-06 22:36:21,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:36:21,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:36:21,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:21,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:21,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:21,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:21,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:21,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:21,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:36:21,490 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:36:21,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,493 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:36:21,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:21,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:21,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:21,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:21,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:21,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:21,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:21,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:21,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:21,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,553 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:36:21,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:21,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:21,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:21,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:21,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:21,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:21,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:21,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:21,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:21,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,603 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:21,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:36:21,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:21,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:21,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:21,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:21,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:21,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:21,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:21,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:21,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,648 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:21,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:36:21,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:21,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:21,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:21,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:21,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:21,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:21,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:21,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:21,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,707 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:36:21,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:21,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:21,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:21,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:21,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:21,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:21,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:21,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:21,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:21,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,757 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:36:21,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:21,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:21,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:21,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:21,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:21,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:21,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:21,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:21,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:36:21,795 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:36:21,796 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:36:21,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:21,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,800 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:36:21,805 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:36:21,805 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:36:21,805 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:36:21,806 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2023-11-06 22:36:21,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:21,812 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:36:21,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:21,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:36:21,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:21,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:36:21,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:22,502 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-06 22:36:22,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 50 transitions. cyclomatic complexity: 2 Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:22,617 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 50 transitions. cyclomatic complexity: 2. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 141 states and 144 transitions. Complement of second has 7 states. [2023-11-06 22:36:22,619 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 [2023-11-06 22:36:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-11-06 22:36:22,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 47 letters. [2023-11-06 22:36:22,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:22,627 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:36:22,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:22,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:36:22,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:22,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:36:22,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:23,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:23,275 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:23,276 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-06 22:36:23,276 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 50 transitions. cyclomatic complexity: 2 Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:23,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 50 transitions. cyclomatic complexity: 2. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 96 states and 99 transitions. Complement of second has 12 states. [2023-11-06 22:36:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-06 22:36:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 50 transitions. [2023-11-06 22:36:23,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 50 transitions. Stem has 2 letters. Loop has 47 letters. [2023-11-06 22:36:23,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:23,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 50 transitions. Stem has 49 letters. Loop has 47 letters. [2023-11-06 22:36:23,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:23,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 50 transitions. Stem has 2 letters. Loop has 94 letters. [2023-11-06 22:36:23,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:23,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 99 transitions. [2023-11-06 22:36:23,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:36:23,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 87 states and 90 transitions. [2023-11-06 22:36:23,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-06 22:36:23,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2023-11-06 22:36:23,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 90 transitions. [2023-11-06 22:36:23,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:36:23,544 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 90 transitions. [2023-11-06 22:36:23,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 90 transitions. [2023-11-06 22:36:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 59. [2023-11-06 22:36:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.0508474576271187) internal successors, (62), 58 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) [2023-11-06 22:36:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2023-11-06 22:36:23,551 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 62 transitions. [2023-11-06 22:36:23,551 INFO L428 stractBuchiCegarLoop]: Abstraction has 59 states and 62 transitions. [2023-11-06 22:36:23,552 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:36:23,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 62 transitions. [2023-11-06 22:36:23,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:36:23,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:36:23,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:36:23,554 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:36:23,554 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:23,555 INFO L748 eck$LassoCheckResult]: Stem: 950#$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); 930#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 931#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 943#L18-2 [2023-11-06 22:36:23,555 INFO L750 eck$LassoCheckResult]: Loop: 943#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 941#L13 assume !(0 == __VERIFIER_assert_~cond#1); 926#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 927#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 935#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 936#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 939#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 946#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 952#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 943#L18-2 [2023-11-06 22:36:23,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:36:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:23,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848380163] [2023-11-06 22:36:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:23,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:23,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:23,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:23,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 507021115, now seen corresponding path program 1 times [2023-11-06 22:36:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:23,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107022804] [2023-11-06 22:36:23,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:23,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:23,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:23,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:23,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1050452364, now seen corresponding path program 1 times [2023-11-06 22:36:23,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:23,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754168884] [2023-11-06 22:36:23,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:23,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:23,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:23,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:23,771 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:36:23,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:36:23,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:36:23,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:36:23,771 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:36:23,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:23,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:36:23,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:36:23,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: hh2012-ex3.i_Iteration4_Loop [2023-11-06 22:36:23,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:36:23,772 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:36:23,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:23,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:23,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:23,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:23,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:23,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:36:23,864 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:36:23,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:23,866 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:23,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:23,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:23,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:36:23,903 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:23,904 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: [] [2023-11-06 22:36:23,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:23,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:23,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:23,916 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:23,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:23,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:23,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:36:23,956 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:23,956 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:36:23,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:23,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:23,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:23,968 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:23,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:23,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:23,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:36:24,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:24,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:24,017 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:24,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:36:24,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:24,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:36:24,084 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:36:24,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:24,095 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:36:24,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:36:24,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:36:24,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:36:24,095 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:36:24,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:36:24,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:36:24,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: hh2012-ex3.i_Iteration4_Loop [2023-11-06 22:36:24,096 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:36:24,096 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:36:24,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:36:24,187 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:36:24,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:24,188 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:24,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:36:24,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:24,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:24,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:24,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:24,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:24,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:24,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:24,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:24,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:24,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:24,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:24,235 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:24,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:24,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:24,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:24,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:24,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:24,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:24,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:36:24,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:24,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:24,270 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:36:24,276 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:36:24,276 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:36:24,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:24,278 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:24,285 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:36:24,285 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:36:24,285 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:36:24,285 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 13 Supporting invariants [] [2023-11-06 22:36:24,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:36:24,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:24,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:36:24,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:24,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:36:24,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:24,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:36:24,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:24,481 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-06 22:36:24,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 62 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2023-11-06 22:36:24,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 62 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) Result 165 states and 171 transitions. Complement of second has 9 states. [2023-11-06 22:36:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-06 22:36:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2023-11-06 22:36:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2023-11-06 22:36:24,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 9 letters. [2023-11-06 22:36:24,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:24,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 12 letters. Loop has 9 letters. [2023-11-06 22:36:24,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:24,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 18 letters. [2023-11-06 22:36:24,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:24,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 171 transitions. [2023-11-06 22:36:24,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:36:24,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 108 states and 111 transitions. [2023-11-06 22:36:24,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:36:24,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 22:36:24,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 111 transitions. [2023-11-06 22:36:24,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:36:24,608 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 111 transitions. [2023-11-06 22:36:24,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 111 transitions. [2023-11-06 22:36:24,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 96. [2023-11-06 22:36:24,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.03125) internal successors, (99), 95 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 99 transitions. [2023-11-06 22:36:24,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 99 transitions. [2023-11-06 22:36:24,618 INFO L428 stractBuchiCegarLoop]: Abstraction has 96 states and 99 transitions. [2023-11-06 22:36:24,618 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:36:24,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 99 transitions. [2023-11-06 22:36:24,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:36:24,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:36:24,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:36:24,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:24,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:24,622 INFO L748 eck$LassoCheckResult]: Stem: 1237#$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); 1219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~post2#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 1220#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 1238#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1305#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1304#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1241#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 1226#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1227#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 1229#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1235#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 1243#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1233#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1231#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1217#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1218#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 1303#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1302#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 1301#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1244#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 1245#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1300#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1299#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1298#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1297#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 1296#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1295#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 1294#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1265#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 1293#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1266#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1261#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1262#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1257#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 1258#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1253#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 1254#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1249#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 1250#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1246#L18-2 assume !(main_~j~0#1 < 4); 1236#L18-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1212#L13-16 assume !(0 == __VERIFIER_assert_~cond#1); 1210#L13-19 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1211#L13-20 assume !(0 == __VERIFIER_assert_~cond#1); 1213#L13-23 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1214#L13-24 assume !(0 == __VERIFIER_assert_~cond#1); 1240#L13-27 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1221#L13-28 assume !(0 == __VERIFIER_assert_~cond#1); 1222#L13-31 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - main_~j~0#1);havoc main_~j~0#1; 1223#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 1232#L18-2 [2023-11-06 22:36:24,623 INFO L750 eck$LassoCheckResult]: Loop: 1232#L18-2 assume !!(main_~j~0#1 < 4);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_#t~post2#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1230#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1215#L13-3 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_~j~0#1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1216#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 1224#L13-7 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_~i~0#1 <= 3 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1225#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 1228#L13-11 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_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1234#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 1242#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1232#L18-2 [2023-11-06 22:36:24,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:24,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1348489067, now seen corresponding path program 2 times [2023-11-06 22:36:24,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:24,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607080981] [2023-11-06 22:36:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:24,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:24,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:24,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:24,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:24,674 INFO L85 PathProgramCache]: Analyzing trace with hash 507021115, now seen corresponding path program 2 times [2023-11-06 22:36:24,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:24,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464338290] [2023-11-06 22:36:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:24,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:24,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:24,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:24,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:24,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1236548903, now seen corresponding path program 3 times [2023-11-06 22:36:24,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:24,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900758727] [2023-11-06 22:36:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:24,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:36:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:36:24,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:36:24,880 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:36:24,880 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:36:24,880 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:36:24,880 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:36:24,880 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:36:24,880 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,880 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:36:24,881 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:36:24,881 INFO L133 ssoRankerPreferences]: Filename of dumped script: hh2012-ex3.i_Iteration5_Loop [2023-11-06 22:36:24,881 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:36:24,881 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:36:24,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:24,961 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:36:24,961 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:36:24,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:24,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:24,963 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:24,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:24,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:24,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:36:25,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:36:25,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:36:25,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:25,008 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:25,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:36:25,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:25,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:36:25,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:25,050 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:25,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:36:25,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:36:25,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:36:25,112 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:36:25,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,123 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:36:25,123 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:36:25,123 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:36:25,123 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:36:25,123 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:36:25,123 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,123 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:36:25,123 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:36:25,123 INFO L133 ssoRankerPreferences]: Filename of dumped script: hh2012-ex3.i_Iteration5_Loop [2023-11-06 22:36:25,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:36:25,124 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:36:25,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:25,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:25,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:25,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:25,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:36:25,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:36:25,210 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:36:25,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:25,216 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:25,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:25,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:36:25,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:25,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:25,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:25,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:25,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:25,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:25,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:25,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:25,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:25,270 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:25,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:25,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:25,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:25,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:25,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:25,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:25,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:25,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:25,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:36:25,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:36:25,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:25,323 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:25,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:36:25,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:36:25,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:36:25,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:36:25,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:36:25,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:36:25,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:36:25,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:36:25,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:36:25,364 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:36:25,368 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:36:25,368 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:36:25,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:36:25,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:25,376 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:25,378 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:36:25,378 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:36:25,379 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:36:25,379 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 13 Supporting invariants [] [2023-11-06 22:36:25,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:36:25,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,384 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:36:25,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:25,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:36:25,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:36:25,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:25,693 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-06 22:36:25,693 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 99 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 99 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 146 states and 150 transitions. Complement of second has 9 states. [2023-11-06 22:36:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-06 22:36:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2023-11-06 22:36:25,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 50 letters. Loop has 9 letters. [2023-11-06 22:36:25,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:25,816 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:36:25,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:36:25,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:36:25,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:26,124 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-06 22:36:26,125 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 99 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 99 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 146 states and 150 transitions. Complement of second has 11 states. [2023-11-06 22:36:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:36:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2023-11-06 22:36:26,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 50 letters. Loop has 9 letters. [2023-11-06 22:36:26,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:26,288 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:36:26,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:36:26,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:36:26,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:36:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:26,609 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 4 loop predicates [2023-11-06 22:36:26,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 99 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,725 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 99 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 179 states and 186 transitions. Complement of second has 8 states. [2023-11-06 22:36:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-06 22:36:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2023-11-06 22:36:26,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 50 letters. Loop has 9 letters. [2023-11-06 22:36:26,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:26,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 59 letters. Loop has 9 letters. [2023-11-06 22:36:26,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:26,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 50 letters. Loop has 18 letters. [2023-11-06 22:36:26,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:36:26,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 186 transitions. [2023-11-06 22:36:26,739 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:36:26,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 0 states and 0 transitions. [2023-11-06 22:36:26,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:36:26,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:36:26,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:36:26,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:26,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:36:26,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:36:26,741 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:36:26,741 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:36:26,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:36:26,741 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:36:26,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:36:26,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:36:26 BoogieIcfgContainer [2023-11-06 22:36:26,751 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:36:26,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:36:26,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:36:26,753 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:36:26,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:17" (3/4) ... [2023-11-06 22:36:26,755 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:36:26,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:36:26,760 INFO L158 Benchmark]: Toolchain (without parser) took 10060.73ms. Allocated memory was 140.5MB in the beginning and 226.5MB in the end (delta: 86.0MB). Free memory was 94.8MB in the beginning and 108.5MB in the end (delta: -13.7MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,761 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 140.5MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:26,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.59ms. Allocated memory is still 140.5MB. Free memory was 94.5MB in the beginning and 84.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.95ms. Allocated memory is still 140.5MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,764 INFO L158 Benchmark]: Boogie Preprocessor took 33.72ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,764 INFO L158 Benchmark]: RCFGBuilder took 489.49ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 81.4MB in the beginning and 157.7MB in the end (delta: -76.3MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,766 INFO L158 Benchmark]: BuchiAutomizer took 9111.34ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 157.7MB in the beginning and 108.5MB in the end (delta: 49.2MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,766 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 226.5MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:26,769 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 140.5MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.59ms. Allocated memory is still 140.5MB. Free memory was 94.5MB in the beginning and 84.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.95ms. Allocated memory is still 140.5MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.72ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 81.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.49ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 81.4MB in the beginning and 157.7MB in the end (delta: -76.3MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 9111.34ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 157.7MB in the beginning and 108.5MB in the end (delta: 49.2MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 226.5MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 7) and consists of 7 locations. One deterministic module has affine ranking function ((-2 * i) + 13) and consists of 5 locations. One nondeterministic module has affine ranking function ((-2 * i) + 13) and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 6 iterations. TraceHistogramMax:4. Analysis of lassos took 5.2s. Construction of modules took 0.4s. Büchi inclusion checks took 3.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/58 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 430 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 253 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 177 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 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! [2023-11-06 22:36:26,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:36:26,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58492386-163f-4ef1-b7d7-11dd64396fcd/bin/uautomizer-verify-WvqO1wxjHP/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