./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/mine2017-ex4.8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/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_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/mine2017-ex4.8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/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_1645337a-fd82-40a0-a39c-96e677b40235/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 ee63462f1ec886f4aa9c5663162640144e173530e57636655ca95f3d6ab0ae72 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:59:55,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:59:55,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:59:55,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:59:55,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:59:55,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:59:55,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:59:55,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:59:55,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:59:55,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:59:55,782 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:59:55,782 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:59:55,783 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:59:55,783 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:59:55,784 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:59:55,785 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:59:55,785 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:59:55,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:59:55,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:59:55,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:59:55,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:59:55,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:59:55,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:59:55,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:59:55,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:59:55,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:59:55,793 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:59:55,794 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:59:55,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:59:55,794 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:59:55,795 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:59:55,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:59:55,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:59:55,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:59:55,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:59:55,797 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:59:55,798 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_1645337a-fd82-40a0-a39c-96e677b40235/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee63462f1ec886f4aa9c5663162640144e173530e57636655ca95f3d6ab0ae72 [2023-11-06 22:59:56,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:59:56,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:59:56,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:59:56,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:59:56,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:59:56,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loop-lit/mine2017-ex4.8.i [2023-11-06 22:59:59,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:59:59,560 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:59:59,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/sv-benchmarks/c/loop-lit/mine2017-ex4.8.i [2023-11-06 22:59:59,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/data/0e47eaf3c/bb0a25a5b5034da1b4398da578e477e3/FLAG0562c8095 [2023-11-06 22:59:59,584 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/data/0e47eaf3c/bb0a25a5b5034da1b4398da578e477e3 [2023-11-06 22:59:59,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:59:59,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:59:59,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:59,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:59:59,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:59:59,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf7b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59, skipping insertion in model container [2023-11-06 22:59:59,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,624 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:59,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:59,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:59,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:59,835 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:59,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59 WrapperNode [2023-11-06 22:59:59,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:59,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:59,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:59,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:59,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,869 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 38 [2023-11-06 22:59:59,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:59,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:59,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:59,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:59,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:59,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:59,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:59,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:59,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (1/1) ... [2023-11-06 22:59:59,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:59:59,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:59,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:59,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:59:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:59:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:00:00,042 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:00:00,044 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:00:00,169 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:00:00,177 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:00:00,177 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:00:00,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:00 BoogieIcfgContainer [2023-11-06 23:00:00,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:00:00,181 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 23:00:00,181 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 23:00:00,186 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 23:00:00,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:00:00,187 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:59:59" (1/3) ... [2023-11-06 23:00:00,189 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f5ff95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:00:00, skipping insertion in model container [2023-11-06 23:00:00,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:00:00,189 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:59" (2/3) ... [2023-11-06 23:00:00,190 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f5ff95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:00:00, skipping insertion in model container [2023-11-06 23:00:00,190 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:00:00,190 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:00" (3/3) ... [2023-11-06 23:00:00,192 INFO L332 chiAutomizerObserver]: Analyzing ICFG mine2017-ex4.8.i [2023-11-06 23:00:00,256 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 23:00:00,256 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 23:00:00,256 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 23:00:00,256 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 23:00:00,256 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 23:00:00,257 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 23:00:00,257 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 23:00:00,257 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 23:00:00,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:00,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-11-06 23:00:00,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:00:00,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:00:00,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:00:00,286 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:00,286 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 23:00:00,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:00,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-11-06 23:00:00,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:00:00,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:00:00,289 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:00:00,290 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:00,299 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_~v~0#1;main_~v~0#1 := 0; 13#L20-2true [2023-11-06 23:00:00,299 INFO L750 eck$LassoCheckResult]: Loop: 13#L20-2true havoc main_#t~nondet1#1; 15#L17-1true assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L13true assume !(0 == __VERIFIER_assert_~cond#1); 5#L13-3true 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_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L13-4true assume !(0 == __VERIFIER_assert_~cond#1); 9#L13-7true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 17#L20true assume !(0 == main_~v~0#1); 13#L20-2true [2023-11-06 23:00:00,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:00,306 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 23:00:00,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:00,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689227111] [2023-11-06 23:00:00,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:00,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:00,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:00,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:00,435 INFO L85 PathProgramCache]: Analyzing trace with hash -266161209, now seen corresponding path program 1 times [2023-11-06 23:00:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:00,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020928835] [2023-11-06 23:00:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:00,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:00,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:00,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1280135621, now seen corresponding path program 1 times [2023-11-06 23:00:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132259255] [2023-11-06 23:00:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:00,633 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 23:00:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132259255] [2023-11-06 23:00:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132259255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:00,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:00,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:00:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552551302] [2023-11-06 23:00:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:00,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:00,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:00:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:00:00,941 INFO L87 Difference]: Start difference. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:00,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:00,977 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2023-11-06 23:00:00,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 32 transitions. [2023-11-06 23:00:00,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 23:00:00,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2023-11-06 23:00:00,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 23:00:00,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-06 23:00:00,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-06 23:00:00,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:00,989 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 23:00:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-06 23:00:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-06 23:00:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:01,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-06 23:00:01,023 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 23:00:01,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:00:01,030 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 23:00:01,031 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 23:00:01,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2023-11-06 23:00:01,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 23:00:01,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:00:01,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:00:01,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:01,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:01,035 INFO L748 eck$LassoCheckResult]: Stem: 67#$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(22, 2); 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_~v~0#1;main_~v~0#1 := 0; 69#L20-2 havoc main_#t~nondet1#1; 75#L17-1 assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 74#L13 assume !(0 == __VERIFIER_assert_~cond#1); 73#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_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 72#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 71#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 70#L20 assume 0 == main_~v~0#1;main_~v~0#1 := 1; 64#L20-2 [2023-11-06 23:00:01,035 INFO L750 eck$LassoCheckResult]: Loop: 64#L20-2 havoc main_#t~nondet1#1; 65#L17-1 assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 62#L13 assume !(0 == __VERIFIER_assert_~cond#1); 63#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_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 66#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 60#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 61#L20 assume !(0 == main_~v~0#1); 64#L20-2 [2023-11-06 23:00:01,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:01,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1280135619, now seen corresponding path program 1 times [2023-11-06 23:00:01,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:01,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336290717] [2023-11-06 23:00:01,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:01,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:01,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash -266161209, now seen corresponding path program 2 times [2023-11-06 23:00:01,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:01,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103397980] [2023-11-06 23:00:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:01,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1693695035, now seen corresponding path program 1 times [2023-11-06 23:00:01,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:01,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676082556] [2023-11-06 23:00:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:01,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:01,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 11:00:01 BoogieIcfgContainer [2023-11-06 23:00:01,503 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 23:00:01,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:00:01,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:00:01,505 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:00:01,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:00" (3/4) ... [2023-11-06 23:00:01,508 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 23:00:01,563 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:00:01,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:00:01,565 INFO L158 Benchmark]: Toolchain (without parser) took 1975.29ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 123.9MB in the beginning and 152.2MB in the end (delta: -28.4MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-11-06 23:00:01,565 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 163.6MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:00:01,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.81ms. Allocated memory is still 163.6MB. Free memory was 123.4MB in the beginning and 113.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:00:01,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.87ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 111.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:00:01,568 INFO L158 Benchmark]: Boogie Preprocessor took 23.47ms. Allocated memory is still 163.6MB. Free memory was 111.8MB in the beginning and 110.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:00:01,568 INFO L158 Benchmark]: RCFGBuilder took 285.11ms. Allocated memory is still 163.6MB. Free memory was 110.7MB in the beginning and 101.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:00:01,569 INFO L158 Benchmark]: BuchiAutomizer took 1322.75ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 101.9MB in the beginning and 154.3MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:00:01,570 INFO L158 Benchmark]: Witness Printer took 59.25ms. Allocated memory is still 209.7MB. Free memory was 154.3MB in the beginning and 152.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:00:01,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 163.6MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.81ms. Allocated memory is still 163.6MB. Free memory was 123.4MB in the beginning and 113.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.87ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 111.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.47ms. Allocated memory is still 163.6MB. Free memory was 111.8MB in the beginning and 110.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.11ms. Allocated memory is still 163.6MB. Free memory was 110.7MB in the beginning and 101.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1322.75ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 101.9MB in the beginning and 154.3MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.25ms. Allocated memory is still 209.7MB. Free memory was 154.3MB in the beginning and 152.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int v = 0; VAL [v=0] [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] RET __VERIFIER_assert(v <= 1) [L20] COND TRUE v == 0 [L21] v = 1 VAL [v=1] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND FALSE !(v == 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int v = 0; VAL [v=0] [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] RET __VERIFIER_assert(v <= 1) [L20] COND TRUE v == 0 [L21] v = 1 VAL [v=1] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND FALSE !(v == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 23:00:01,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1645337a-fd82-40a0-a39c-96e677b40235/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)