./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a 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_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e66e5d0ac00f8e474147a7ee8b0260ea4ced8ccde7952ff642446632cdde4c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:04:25,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:25,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:25,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:25,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:25,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:25,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:25,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:25,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:25,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:25,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:25,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:25,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:25,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:25,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:25,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:25,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:25,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:25,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:25,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:25,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:25,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:25,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:25,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:25,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:25,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:25,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:25,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:25,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:25,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:25,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:25,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:25,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:25,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:25,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:25,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:25,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:25,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:25,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:25,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:25,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:25,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 21:04:25,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:25,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:25,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:25,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:25,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:25,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:25,784 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:25,784 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 21:04:25,785 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 21:04:25,785 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 21:04:25,786 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 21:04:25,787 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 21:04:25,787 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 21:04:25,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:25,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:04:25,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:04:25,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:25,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 21:04:25,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 21:04:25,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 21:04:25,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:25,790 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 21:04:25,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:25,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 21:04:25,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:25,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:25,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:25,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:04:25,795 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 21:04:25,795 INFO L138 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_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e66e5d0ac00f8e474147a7ee8b0260ea4ced8ccde7952ff642446632cdde4c3 [2022-11-02 21:04:26,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:26,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:26,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:26,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:26,167 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:26,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-restricted-15/Ex06.c [2022-11-02 21:04:26,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/data/bea9fc118/2a0dc24c4c6a4bf18c12ebbeb19b0bf4/FLAG2543cf2ab [2022-11-02 21:04:26,863 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:26,865 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/sv-benchmarks/c/termination-restricted-15/Ex06.c [2022-11-02 21:04:26,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/data/bea9fc118/2a0dc24c4c6a4bf18c12ebbeb19b0bf4/FLAG2543cf2ab [2022-11-02 21:04:27,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/data/bea9fc118/2a0dc24c4c6a4bf18c12ebbeb19b0bf4 [2022-11-02 21:04:27,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:27,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:27,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:27,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:27,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:27,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea6a364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27, skipping insertion in model container [2022-11-02 21:04:27,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:27,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:27,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:27,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:27,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:27,613 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:27,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27 WrapperNode [2022-11-02 21:04:27,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:27,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:27,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:27,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:27,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,652 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-02 21:04:27,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:27,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:27,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:27,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:27,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,675 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:27,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:27,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:27,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:27,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (1/1) ... [2022-11-02 21:04:27,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:27,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:27,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:27,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:27,864 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:27,868 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:27,987 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:27,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:27,998 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:04:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:28 BoogieIcfgContainer [2022-11-02 21:04:28,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:28,005 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 21:04:28,005 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 21:04:28,011 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 21:04:28,012 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:04:28,012 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 09:04:27" (1/3) ... [2022-11-02 21:04:28,014 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41ea9dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:04:28, skipping insertion in model container [2022-11-02 21:04:28,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:04:28,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:27" (2/3) ... [2022-11-02 21:04:28,015 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41ea9dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:04:28, skipping insertion in model container [2022-11-02 21:04:28,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:04:28,015 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:28" (3/3) ... [2022-11-02 21:04:28,017 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex06.c [2022-11-02 21:04:28,101 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 21:04:28,101 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 21:04:28,101 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 21:04:28,102 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 21:04:28,102 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 21:04:28,102 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 21:04:28,102 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 21:04:28,103 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 21:04:28,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-11-02 21:04:28,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:04:28,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:04:28,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:04:28,141 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:04:28,141 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:04:28,142 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 21:04:28,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-11-02 21:04:28,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:04:28,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:04:28,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:04:28,146 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:04:28,146 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:04:28,155 INFO L748 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L13-1true [2022-11-02 21:04:28,155 INFO L750 eck$LassoCheckResult]: Loop: 3#L13-1true assume !!(main_~i~0#1 >= -5 && main_~i~0#1 <= 5); 7#L10true assume !(main_~i~0#1 > 0); 5#L10-2true assume main_~i~0#1 < 0;main_~i~0#1 := 1 + main_~i~0#1; 3#L13-1true [2022-11-02 21:04:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 21:04:28,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:28,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216872287] [2022-11-02 21:04:28,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:28,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:28,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:28,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2022-11-02 21:04:28,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:28,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876694282] [2022-11-02 21:04:28,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:28,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:28,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:28,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:28,395 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2022-11-02 21:04:28,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:28,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207918620] [2022-11-02 21:04:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:28,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:28,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:28,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:28,596 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:04:28,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:04:28,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:04:28,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:04:28,606 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:04:28,606 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:28,606 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:04:28,606 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:04:28,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex06.c_Iteration1_Loop [2022-11-02 21:04:28,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:04:28,607 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:04:28,645 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:28,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:28,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:28,829 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:04:28,830 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:04:28,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:28,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:28,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:28,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 21:04:28,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:04:28,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:04:28,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:04:28,879 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:04:28,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:28,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:28,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:28,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:28,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 21:04:28,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:04:28,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:04:28,964 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:04:28,964 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:04:29,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:29,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:04:29,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:04:29,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 21:04:29,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:29,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:04:29,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:04:29,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 21:04:29,136 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:04:29,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,181 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:04:29,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:04:29,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:04:29,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:04:29,182 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:04:29,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:04:29,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:04:29,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex06.c_Iteration1_Loop [2022-11-02 21:04:29,183 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:04:29,183 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:04:29,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:29,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:29,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:04:29,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:04:29,261 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:04:29,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:29,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,292 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 [2022-11-02 21:04:29,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 21:04:29,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:29,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:29,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:29,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:29,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:04:29,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:04:29,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:29,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:29,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,391 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 [2022-11-02 21:04:29,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 21:04:29,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:29,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:29,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:29,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:29,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:04:29,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:04:29,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:04:29,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:29,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,497 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 [2022-11-02 21:04:29,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 21:04:29,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:04:29,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:04:29,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:04:29,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:04:29,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:04:29,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:04:29,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:04:29,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:04:29,531 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 21:04:29,532 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:04:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:04:29,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:29,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,544 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:04:29,544 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:04:29,545 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:04:29,545 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-02 21:04:29,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 21:04:29,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,581 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:04:29,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:29,618 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:04:29,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:29,633 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:04:29,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:29,680 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 21:04:29,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-02 21:04:29,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 31 states and 45 transitions. Complement of second has 6 states. [2022-11-02 21:04:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:04:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-02 21:04:29,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-02 21:04:29,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-02 21:04:29,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:04:29,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-02 21:04:29,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:04:29,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-02 21:04:29,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:04:29,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 45 transitions. [2022-11-02 21:04:29,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-02 21:04:29,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 14 states and 21 transitions. [2022-11-02 21:04:29,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-02 21:04:29,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-02 21:04:29,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2022-11-02 21:04:29,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:04:29,763 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2022-11-02 21:04:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2022-11-02 21:04:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-02 21:04:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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) [2022-11-02 21:04:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2022-11-02 21:04:29,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2022-11-02 21:04:29,792 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2022-11-02 21:04:29,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 21:04:29,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2022-11-02 21:04:29,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-02 21:04:29,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:04:29,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:04:29,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 21:04:29,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:04:29,794 INFO L748 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 86#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 89#L13-1 assume !!(main_~i~0#1 >= -5 && main_~i~0#1 <= 5); 79#L10 [2022-11-02 21:04:29,795 INFO L750 eck$LassoCheckResult]: Loop: 79#L10 assume !(main_~i~0#1 > 0); 82#L10-2 assume !(main_~i~0#1 < 0); 78#L13-1 assume !!(main_~i~0#1 >= -5 && main_~i~0#1 <= 5); 79#L10 [2022-11-02 21:04:29,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-02 21:04:29,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:29,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268965760] [2022-11-02 21:04:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:29,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:29,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash 45860, now seen corresponding path program 1 times [2022-11-02 21:04:29,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:29,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331431743] [2022-11-02 21:04:29,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:29,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:29,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:29,818 INFO L85 PathProgramCache]: Analyzing trace with hash 889694493, now seen corresponding path program 1 times [2022-11-02 21:04:29,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:29,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724106931] [2022-11-02 21:04:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:29,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:29,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 09:04:29 BoogieIcfgContainer [2022-11-02 21:04:29,905 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 21:04:29,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:04:29,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:04:29,906 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:04:29,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:28" (3/4) ... [2022-11-02 21:04:29,909 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-02 21:04:29,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:04:29,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:04:29,946 INFO L158 Benchmark]: Toolchain (without parser) took 2704.44ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 68.7MB in the beginning and 66.2MB in the end (delta: 2.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-11-02 21:04:29,946 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:04:29,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.42ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 73.6MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:04:29,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.79ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 72.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:04:29,957 INFO L158 Benchmark]: Boogie Preprocessor took 24.39ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 71.5MB in the end (delta: 931.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:04:29,957 INFO L158 Benchmark]: RCFGBuilder took 321.90ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 63.4MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 21:04:29,958 INFO L158 Benchmark]: BuchiAutomizer took 1900.15ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.1MB in the beginning and 67.7MB in the end (delta: -4.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-02 21:04:29,958 INFO L158 Benchmark]: Witness Printer took 39.11ms. Allocated memory is still 123.7MB. Free memory was 67.7MB in the beginning and 66.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:04:29,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.42ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 73.6MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.79ms. Allocated memory is still 98.6MB. Free memory was 73.6MB in the beginning and 72.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.39ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 71.5MB in the end (delta: 931.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.90ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 63.4MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1900.15ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 63.1MB in the beginning and 67.7MB in the end (delta: -4.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Witness Printer took 39.11ms. Allocated memory is still 123.7MB. Free memory was 67.7MB in the beginning and 66.2MB in the end (delta: 1.5MB). 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 (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i and consists of 4 locations. The remainder module has 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 68ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i >= -5 && i <= 5 VAL [i=0] Loop: [L10] COND FALSE !(i > 0) [L13] COND FALSE !(i < 0) [L9] COND TRUE i >= -5 && i <= 5 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i >= -5 && i <= 5 VAL [i=0] Loop: [L10] COND FALSE !(i > 0) [L13] COND FALSE !(i < 0) [L9] COND TRUE i >= -5 && i <= 5 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-02 21:04:30,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:30,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16601efb-815d-4b72-ae4a-e74010c27603/bin/uautomizer-Dbtcem3rbc/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)