./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a --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 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 --- 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-b5237d8 [2022-11-21 17:17:35,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:17:35,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:17:35,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:17:35,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:17:35,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:17:35,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:17:35,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:17:35,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:17:35,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:17:35,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:17:35,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:17:35,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:17:35,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:17:35,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:17:35,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:17:35,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:17:35,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:17:35,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:17:35,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:17:35,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:17:35,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:17:35,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:17:35,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:17:35,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:17:35,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:17:35,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:17:35,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:17:35,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:17:35,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:17:35,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:17:35,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:17:35,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:17:35,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:17:35,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:17:35,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:17:35,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:17:35,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:17:35,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:17:35,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:17:35,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:17:35,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 17:17:35,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:17:35,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:17:35,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:17:35,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:17:35,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:17:35,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:17:35,741 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:17:35,741 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 17:17:35,741 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 17:17:35,741 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 17:17:35,742 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 17:17:35,742 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 17:17:35,742 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 17:17:35,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:17:35,742 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:17:35,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:17:35,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:17:35,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 17:17:35,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 17:17:35,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 17:17:35,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:17:35,744 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 17:17:35,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:17:35,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 17:17:35,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:17:35,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:17:35,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:17:35,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:17:35,746 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 17:17:35,746 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_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2022-11-21 17:17:36,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:17:36,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:17:36,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:17:36,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:17:36,087 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:17:36,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-crafted/Parallel.c [2022-11-21 17:17:39,316 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:17:39,552 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:17:39,553 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/sv-benchmarks/c/termination-crafted/Parallel.c [2022-11-21 17:17:39,560 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/data/0d1a52341/f17be1be0dda47e2952142b8846c77ff/FLAG3ba4873f3 [2022-11-21 17:17:39,577 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/data/0d1a52341/f17be1be0dda47e2952142b8846c77ff [2022-11-21 17:17:39,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:17:39,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:17:39,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:17:39,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:17:39,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:17:39,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757bb9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39, skipping insertion in model container [2022-11-21 17:17:39,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:17:39,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:17:39,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:17:39,765 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:17:39,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:17:39,791 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:17:39,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39 WrapperNode [2022-11-21 17:17:39,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:17:39,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:17:39,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:17:39,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:17:39,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,909 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-11-21 17:17:39,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:17:39,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:17:39,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:17:39,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:17:39,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:17:39,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:17:39,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:17:39,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:17:39,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (1/1) ... [2022-11-21 17:17:39,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:39,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:39,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 17:17:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:17:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:17:40,115 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:17:40,117 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:17:40,188 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:17:40,195 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:17:40,195 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:17:40,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:40 BoogieIcfgContainer [2022-11-21 17:17:40,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:17:40,199 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 17:17:40,199 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 17:17:40,203 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 17:17:40,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:17:40,205 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 05:17:39" (1/3) ... [2022-11-21 17:17:40,206 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49e38e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:17:40, skipping insertion in model container [2022-11-21 17:17:40,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:17:40,206 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:39" (2/3) ... [2022-11-21 17:17:40,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49e38e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:17:40, skipping insertion in model container [2022-11-21 17:17:40,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:17:40,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:40" (3/3) ... [2022-11-21 17:17:40,209 INFO L332 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2022-11-21 17:17:40,272 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 17:17:40,272 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 17:17:40,272 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 17:17:40,273 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 17:17:40,273 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 17:17:40,273 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 17:17:40,273 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 17:17:40,273 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 17:17:40,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:40,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 17:17:40,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:17:40,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:17:40,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 17:17:40,304 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 17:17:40,305 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 17:17:40,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:40,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 17:17:40,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:17:40,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:17:40,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 17:17:40,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 17:17:40,316 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L23-2true [2022-11-21 17:17:40,316 INFO L750 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 5#L23true assume !(main_~x~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 4#L23-2true [2022-11-21 17:17:40,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:40,323 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 17:17:40,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:40,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815784485] [2022-11-21 17:17:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:40,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:40,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:40,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:40,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-21 17:17:40,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:40,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060294756] [2022-11-21 17:17:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:40,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:40,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:40,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:40,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:40,505 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-21 17:17:40,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:40,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951494247] [2022-11-21 17:17:40,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:40,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:40,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:40,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:40,610 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:17:40,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:17:40,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:17:40,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:17:40,612 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:17:40,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:40,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:17:40,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:17:40,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2022-11-21 17:17:40,613 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:17:40,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:17:40,634 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:40,652 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:40,657 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:40,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:40,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:17:40,737 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:17:40,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:40,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:40,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:40,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:40,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 17:17:40,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:17:40,830 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: [] [2022-11-21 17:17:40,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:40,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:40,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:40,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:40,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:40,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:40,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 17:17:40,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:17:40,881 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: [] [2022-11-21 17:17:40,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:40,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:40,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:40,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:40,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:40,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:40,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 17:17:40,931 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:17:40,931 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:17:40,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:40,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:40,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:40,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:40,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:40,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:40,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 17:17:40,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:40,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:40,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:40,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:17:41,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:41,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 17:17:41,058 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:17:41,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:41,070 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:17:41,070 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:17:41,070 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:17:41,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:17:41,071 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:17:41,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:17:41,071 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:17:41,071 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2022-11-21 17:17:41,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:17:41,072 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:17:41,074 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:41,079 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:41,084 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:41,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:41,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:17:41,151 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 17:17:41,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:41,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,175 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 [2022-11-21 17:17:41,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 17:17:41,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:41,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:41,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:17:41,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:41,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:17:41,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:17:41,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:17:41,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:41,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:41,223 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,232 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 [2022-11-21 17:17:41,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 17:17:41,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:41,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:41,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:17:41,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:41,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:17:41,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:17:41,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:17:41,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:41,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:41,275 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,284 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 [2022-11-21 17:17:41,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 17:17:41,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:41,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:17:41,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:41,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:17:41,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:41,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:17:41,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:17:41,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:17:41,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:41,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:41,341 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,351 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 [2022-11-21 17:17:41,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 17:17:41,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:41,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:17:41,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:41,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:17:41,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:41,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:17:41,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:17:41,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 17:17:41,389 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 17:17:41,389 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 17:17:41,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:41,408 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 17:17:41,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 17:17:41,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 17:17:41,412 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 17:17:41,412 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2022-11-21 17:17:41,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:41,426 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 17:17:41,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:41,471 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:17:41,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:17:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:41,486 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 17:17:41,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:17:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:41,569 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-21 17:17:41,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 17:17:41,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 22 states and 31 transitions. Complement of second has 7 states. [2022-11-21 17:17:41,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-21 17:17:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 17:17:41,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2022-11-21 17:17:41,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-21 17:17:41,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:17:41,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-21 17:17:41,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:17:41,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-21 17:17:41,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:17:41,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2022-11-21 17:17:41,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 17:17:41,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 9 states and 12 transitions. [2022-11-21 17:17:41,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-21 17:17:41,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-21 17:17:41,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-11-21 17:17:41,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 17:17:41,722 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-11-21 17:17:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-11-21 17:17:41,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:41,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-11-21 17:17:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-11-21 17:17:41,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-21 17:17:41,795 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-21 17:17:41,798 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 17:17:41,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-11-21 17:17:41,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 17:17:41,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:17:41,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:17:41,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-21 17:17:41,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 17:17:41,822 INFO L748 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 69#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 75#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 71#L23 [2022-11-21 17:17:41,823 INFO L750 eck$LassoCheckResult]: Loop: 71#L23 assume main_~x~0#1 >= 0;main_~x~0#1 := main_~x~0#1 - 1; 70#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 71#L23 [2022-11-21 17:17:41,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:41,826 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-21 17:17:41,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:41,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244917853] [2022-11-21 17:17:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:41,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:41,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:41,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:41,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-11-21 17:17:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:41,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104337008] [2022-11-21 17:17:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:41,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:41,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:41,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:41,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-11-21 17:17:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:41,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019163378] [2022-11-21 17:17:41,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:41,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:41,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:41,969 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:17:41,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:17:41,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:17:41,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:17:41,970 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:17:41,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:17:41,971 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:17:41,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2022-11-21 17:17:41,971 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:17:41,971 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:17:41,987 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:41,991 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:41,996 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:42,110 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:17:42,110 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:17:42,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,112 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-21 17:17:42,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:42,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:42,155 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:17:42,155 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:17:42,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-21 17:17:42,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,166 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:42,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:42,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 17:17:42,203 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:17:42,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:17:42,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:42,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,215 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:17:42,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:42,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 17:17:42,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:42,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,264 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:17:42,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:17:42,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-21 17:17:42,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:17:42,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:42,366 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:17:42,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:17:42,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:17:42,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:17:42,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:17:42,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:17:42,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:17:42,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2022-11-21 17:17:42,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:17:42,367 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:17:42,368 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:42,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:42,388 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:17:42,517 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:17:42,520 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 17:17:42,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,522 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-21 17:17:42,529 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 [2022-11-21 17:17:42,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:42,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:42,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:17:42,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:42,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:17:42,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:17:42,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:17:42,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:42,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,587 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-21 17:17:42,596 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 [2022-11-21 17:17:42,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:42,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:42,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:17:42,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:42,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:17:42,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:17:42,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:17:42,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:42,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,651 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-21 17:17:42,659 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 [2022-11-21 17:17:42,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:17:42,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:17:42,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:17:42,671 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 17:17:42,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:17:42,673 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 17:17:42,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:17:42,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 17:17:42,690 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 17:17:42,690 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 17:17:42,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:42,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:42,698 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:42,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 17:17:42,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 17:17:42,710 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 17:17:42,710 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-11-21 17:17:42,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:42,721 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 17:17:42,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-21 17:17:42,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:42,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:17:42,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:17:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:42,767 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:17:42,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:17:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:42,837 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-21 17:17:42,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2022-11-21 17:17:42,864 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 15 states and 21 transitions. Complement of second has 4 states. [2022-11-21 17:17:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-21 17:17:42,869 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) [2022-11-21 17:17:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-11-21 17:17:42,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-21 17:17:42,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:17:42,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-21 17:17:42,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:17:42,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-21 17:17:42,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:17:42,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2022-11-21 17:17:42,876 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 17:17:42,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2022-11-21 17:17:42,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 17:17:42,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 17:17:42,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 17:17:42,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:17:42,878 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:17:42,878 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:17:42,878 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:17:42,878 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 17:17:42,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:17:42,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 17:17:42,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 17:17:42,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 05:17:42 BoogieIcfgContainer [2022-11-21 17:17:42,888 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 17:17:42,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:17:42,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:17:42,889 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:17:42,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:40" (3/4) ... [2022-11-21 17:17:42,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:17:42,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:17:42,895 INFO L158 Benchmark]: Toolchain (without parser) took 3312.27ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 115.2MB in the beginning and 122.3MB in the end (delta: -7.1MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:42,895 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:17:42,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.03ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 105.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:17:42,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.59ms. Allocated memory is still 151.0MB. Free memory was 105.8MB in the beginning and 122.6MB in the end (delta: -16.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:42,897 INFO L158 Benchmark]: Boogie Preprocessor took 21.31ms. Allocated memory is still 151.0MB. Free memory was 122.6MB in the beginning and 121.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:17:42,898 INFO L158 Benchmark]: RCFGBuilder took 263.54ms. Allocated memory is still 151.0MB. Free memory was 121.6MB in the beginning and 113.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:17:42,898 INFO L158 Benchmark]: BuchiAutomizer took 2689.77ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 113.1MB in the beginning and 122.3MB in the end (delta: -9.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-11-21 17:17:42,899 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 182.5MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:17:42,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.03ms. Allocated memory is still 151.0MB. Free memory was 114.8MB in the beginning and 105.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.59ms. Allocated memory is still 151.0MB. Free memory was 105.8MB in the beginning and 122.6MB in the end (delta: -16.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.31ms. Allocated memory is still 151.0MB. Free memory was 122.6MB in the beginning and 121.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.54ms. Allocated memory is still 151.0MB. Free memory was 121.6MB in the beginning and 113.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2689.77ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 113.1MB in the beginning and 122.3MB in the end (delta: -9.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 182.5MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax178 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf131 smp95 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 59ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 17:17:42,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-21 17:17:43,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdeb0262-456e-4364-ae3e-56cd1351c3dd/bin/uautomizer-vX5HgA9Q3a/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 Result: TRUE