./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-assume.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-assume.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8 --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 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 --- 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-2329fc7 [2022-12-13 19:50:52,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:50:52,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:50:52,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:50:52,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:50:52,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:50:52,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:50:52,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:50:52,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:50:52,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:50:52,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:50:52,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:50:52,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:50:52,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:50:52,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:50:52,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:50:52,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:50:52,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:50:52,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:50:52,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:50:52,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:50:52,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:50:52,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:50:52,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:50:52,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:50:52,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:50:52,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:50:52,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:50:52,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:50:52,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:50:52,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:50:52,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:50:52,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:50:52,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:50:52,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:50:52,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:50:52,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:50:52,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:50:52,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:50:52,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:50:52,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:50:52,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 19:50:52,404 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:50:52,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:50:52,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:50:52,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:50:52,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:50:52,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:50:52,406 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:50:52,406 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 19:50:52,407 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 19:50:52,407 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 19:50:52,407 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 19:50:52,407 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 19:50:52,407 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 19:50:52,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 19:50:52,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:50:52,409 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 19:50:52,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:50:52,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 19:50:52,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:50:52,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:50:52,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:50:52,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:50:52,410 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 19:50:52,410 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_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 [2022-12-13 19:50:52,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:50:52,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:50:52,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:50:52,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:50:52,600 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:50:52,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-bwb/and-assume.i [2022-12-13 19:50:55,219 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:50:55,415 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:50:55,416 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/sv-benchmarks/c/termination-bwb/and-assume.i [2022-12-13 19:50:55,427 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/data/9cff4d410/30570721159442bdaff9bd4ad74971ad/FLAG0f52f8648 [2022-12-13 19:50:55,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/data/9cff4d410/30570721159442bdaff9bd4ad74971ad [2022-12-13 19:50:55,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:50:55,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:50:55,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:50:55,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:50:55,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:50:55,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb181d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55, skipping insertion in model container [2022-12-13 19:50:55,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:50:55,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:50:55,607 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:50:55,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:50:55,685 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:50:55,700 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:50:55,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:50:55,730 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:50:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55 WrapperNode [2022-12-13 19:50:55,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:50:55,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:50:55,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:50:55,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:50:55,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,763 INFO L138 Inliner]: procedures = 111, calls = 3, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-12-13 19:50:55,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:50:55,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:50:55,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:50:55,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:50:55,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:50:55,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:50:55,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:50:55,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:50:55,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (1/1) ... [2022-12-13 19:50:55,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:55,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:55,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:55,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 19:50:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:50:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:50:55,930 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:50:55,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:50:55,990 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:50:55,996 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:50:55,996 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 19:50:55,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:50:55 BoogieIcfgContainer [2022-12-13 19:50:55,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:50:55,999 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 19:50:55,999 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 19:50:56,003 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 19:50:56,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:50:56,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 07:50:55" (1/3) ... [2022-12-13 19:50:56,005 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5220c533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 07:50:56, skipping insertion in model container [2022-12-13 19:50:56,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:50:56,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:50:55" (2/3) ... [2022-12-13 19:50:56,006 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5220c533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 07:50:56, skipping insertion in model container [2022-12-13 19:50:56,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 19:50:56,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:50:55" (3/3) ... [2022-12-13 19:50:56,007 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-assume.i [2022-12-13 19:50:56,060 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 19:50:56,061 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 19:50:56,061 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 19:50:56,061 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 19:50:56,061 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 19:50:56,061 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 19:50:56,061 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 19:50:56,062 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 19:50:56,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-12-13 19:50:56,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:50:56,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:50:56,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:50:56,089 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 19:50:56,089 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 19:50:56,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 19:50:56,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-12-13 19:50:56,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:50:56,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:50:56,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:50:56,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 19:50:56,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 19:50:56,099 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~nondet6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L535true assume !!(main_~a~0#1 > 0); 7#L536-1true [2022-12-13 19:50:56,100 INFO L750 eck$LassoCheckResult]: Loop: 7#L536-1true assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 11#L538true assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet6#1 := 0; 4#L538-4true main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 7#L536-1true [2022-12-13 19:50:56,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,105 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-12-13 19:50:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:56,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418165315] [2022-12-13 19:50:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:56,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:56,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,196 INFO L85 PathProgramCache]: Analyzing trace with hash 45784, now seen corresponding path program 1 times [2022-12-13 19:50:56,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:56,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394818444] [2022-12-13 19:50:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:56,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:56,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,214 INFO L85 PathProgramCache]: Analyzing trace with hash 889575253, now seen corresponding path program 1 times [2022-12-13 19:50:56,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:56,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377820046] [2022-12-13 19:50:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:56,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:56,310 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:50:56,310 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:50:56,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:50:56,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:50:56,311 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:50:56,311 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,311 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:50:56,311 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:50:56,311 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration1_Loop [2022-12-13 19:50:56,311 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:50:56,311 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:50:56,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,332 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,341 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,345 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,350 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,352 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,417 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:50:56,418 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:50:56,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:56,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:56,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 19:50:56,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:56,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:56,446 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:56,446 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_1=1} Honda state: {v_rep~unnamed0~0~P_PID_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:56,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:50:56,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:56,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:56,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 19:50:56,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:56,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:56,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:56,472 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_1=2} Honda state: {v_rep~unnamed0~0~P_PGID_1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:56,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-12-13 19:50:56,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:56,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:56,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 19:50:56,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:56,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:56,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 19:50:56,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:56,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:56,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 19:50:56,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:50:56,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:56,567 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 19:50:56,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 19:50:56,571 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:50:56,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:50:56,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:50:56,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:50:56,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 19:50:56,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:50:56,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:50:56,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration1_Loop [2022-12-13 19:50:56,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:50:56,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:50:56,575 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,583 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,585 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,590 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,592 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:56,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:50:56,644 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 19:50:56,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:56,646 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:56,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 19:50:56,648 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 [2022-12-13 19:50:56,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:50:56,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 19:50:56,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:50:56,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 19:50:56,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:50:56,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 19:50:56,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 19:50:56,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 19:50:56,668 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 19:50:56,668 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 19:50:56,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:56,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:56,710 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:56,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 19:50:56,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 19:50:56,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 19:50:56,712 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 19:50:56,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2022-12-13 19:50:56,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 19:50:56,719 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 19:50:56,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:50:56,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:50:56,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:50:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:50:56,759 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:50:56,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:50:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:50:56,835 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 19:50:56,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-13 19:50:56,880 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 33 states and 48 transitions. Complement of second has 7 states. [2022-12-13 19:50:56,882 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 [2022-12-13 19:50:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-13 19:50:56,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-12-13 19:50:56,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 3 letters. Loop has 3 letters. [2022-12-13 19:50:56,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:50:56,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 19:50:56,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:50:56,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 19:50:56,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:50:56,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 48 transitions. [2022-12-13 19:50:56,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:50:56,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 15 states and 19 transitions. [2022-12-13 19:50:56,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-12-13 19:50:56,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-12-13 19:50:56,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2022-12-13 19:50:56,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 19:50:56,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-12-13 19:50:56,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2022-12-13 19:50:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-12-13 19:50:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:50:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-12-13 19:50:56,910 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-12-13 19:50:56,910 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-12-13 19:50:56,910 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 19:50:56,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2022-12-13 19:50:56,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:50:56,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:50:56,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:50:56,911 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 19:50:56,911 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 19:50:56,911 INFO L748 eck$LassoCheckResult]: Stem: 97#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 98#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~nondet6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 93#L535 assume !!(main_~a~0#1 > 0); 94#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 95#L538 [2022-12-13 19:50:56,911 INFO L750 eck$LassoCheckResult]: Loop: 95#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 99#L538-2 assume !(main_~x~0#1 == main_~a~0#1);main_#t~nondet6#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_#t~nondet6#1 <= main_~x~0#1 && main_#t~nondet6#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~nondet6#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet6#1 > main_~x~0#1 + main_~a~0#1; 89#L538-4 main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 90#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 95#L538 [2022-12-13 19:50:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-12-13 19:50:56,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:56,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285436670] [2022-12-13 19:50:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:56,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1575002, now seen corresponding path program 1 times [2022-12-13 19:50:56,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:56,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619812977] [2022-12-13 19:50:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:56,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:56,933 INFO L85 PathProgramCache]: Analyzing trace with hash 183384773, now seen corresponding path program 1 times [2022-12-13 19:50:56,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:56,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806056229] [2022-12-13 19:50:56,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:56,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:56,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:57,059 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:50:57,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:50:57,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:50:57,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:50:57,059 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:50:57,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:50:57,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:50:57,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Loop [2022-12-13 19:50:57,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:50:57,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:50:57,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,068 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,070 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,098 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,143 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-13 19:50:57,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 19:50:57,402 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:50:57,402 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:50:57,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 19:50:57,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:57,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:57,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 19:50:57,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,421 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 19:50:57,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,440 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:57,440 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_3=1} Honda state: {v_rep~unnamed0~0~P_PID_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:57,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 19:50:57,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,444 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 19:50:57,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,457 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:57,457 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:57,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 19:50:57,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 19:50:57,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,480 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:57,480 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_3=2} Honda state: {v_rep~unnamed0~0~P_PGID_3=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:57,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 19:50:57,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,484 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 19:50:57,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 19:50:57,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,503 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 19:50:57,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:50:57,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,627 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:57,627 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_~a~0#1=-3} Honda state: {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_~a~0#1=-3} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 13, 3] Nus: [1, 1] [2022-12-13 19:50:57,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 19:50:57,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,631 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 19:50:57,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:57,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_3=0} Honda state: {v_rep~unnamed0~0~P_ALL_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:57,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-12-13 19:50:57,663 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:50:57,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:50:57,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:50:57,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:50:57,663 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:50:57,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:50:57,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:50:57,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Lasso [2022-12-13 19:50:57,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:50:57,664 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:50:57,666 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,693 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,695 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,696 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,699 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,700 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,702 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:57,741 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-13 19:50:57,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:50:57,969 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:50:57,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,971 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 19:50:57,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:57,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:57,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 19:50:57,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:57,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:57,990 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:57,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 19:50:57,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:50:57,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:58,126 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 19:50:58,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 19:50:58,129 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:50:58,129 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:50:58,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:50:58,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:50:58,129 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 19:50:58,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:58,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:50:58,130 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:50:58,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Lasso [2022-12-13 19:50:58,130 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:50:58,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:50:58,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,161 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,162 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,165 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,167 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:58,203 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-13 19:50:58,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:50:58,445 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 19:50:58,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:58,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:58,446 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:58,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 19:50:58,448 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 [2022-12-13 19:50:58,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:50:58,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 19:50:58,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:50:58,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 19:50:58,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:50:58,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 19:50:58,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 19:50:58,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 19:50:58,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 19:50:58,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:58,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:58,464 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:58,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 19:50:58,466 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 [2022-12-13 19:50:58,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 19:50:58,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 19:50:58,476 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2022-12-13 19:50:58,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 19:50:58,523 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2022-12-13 19:50:58,523 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2022-12-13 19:50:58,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 19:50:58,946 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2022-12-13 19:50:58,946 INFO L444 ModelExtractionUtils]: 19 out of 40 variables were initially zero. Simplification set additionally 16 variables to zero. [2022-12-13 19:50:58,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:58,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:58,947 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:58,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 19:50:58,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 19:50:58,968 INFO L438 nArgumentSynthesizer]: Removed 10 redundant supporting invariants from a total of 12. [2022-12-13 19:50:58,968 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 19:50:58,968 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 >= 0, 1*ULTIMATE.start_main_~a~0#1 >= 0] [2022-12-13 19:50:58,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 19:50:58,977 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2022-12-13 19:50:58,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:50:58,992 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:50:58,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:50:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:50:59,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:50:59,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:50:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:50:59,033 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-12-13 19:50:59,033 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 19:50:59,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 40 states and 52 transitions. Complement of second has 9 states. [2022-12-13 19:50:59,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2022-12-13 19:50:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 19:50:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2022-12-13 19:50:59,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 4 letters. [2022-12-13 19:50:59,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:50:59,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2022-12-13 19:50:59,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:50:59,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 8 letters. [2022-12-13 19:50:59,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 19:50:59,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2022-12-13 19:50:59,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:50:59,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 24 states and 31 transitions. [2022-12-13 19:50:59,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-12-13 19:50:59,074 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-12-13 19:50:59,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2022-12-13 19:50:59,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 19:50:59,075 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-12-13 19:50:59,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2022-12-13 19:50:59,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2022-12-13 19:50:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-12-13 19:50:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-12-13 19:50:59,076 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-12-13 19:50:59,076 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-12-13 19:50:59,076 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 19:50:59,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2022-12-13 19:50:59,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 19:50:59,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 19:50:59,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 19:50:59,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:50:59,077 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 19:50:59,077 INFO L748 eck$LassoCheckResult]: Stem: 217#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~nondet6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 213#L535 assume !!(main_~a~0#1 > 0); 214#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 215#L538 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet6#1 := 0; 223#L538-4 main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 210#L536-1 [2022-12-13 19:50:59,077 INFO L750 eck$LassoCheckResult]: Loop: 210#L536-1 assume !!(main_~x~0#1 > 0);main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1; 222#L538 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 219#L538-2 assume !(main_~x~0#1 == main_~a~0#1);main_#t~nondet6#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);assume (main_~x~0#1 < 0 || main_~a~0#1 < 0) || (main_#t~nondet6#1 <= main_~x~0#1 && main_#t~nondet6#1 <= main_~a~0#1);assume (main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~nondet6#1 >= 0;assume (main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet6#1 > main_~x~0#1 + main_~a~0#1; 209#L538-4 main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 210#L536-1 [2022-12-13 19:50:59,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash 889575253, now seen corresponding path program 2 times [2022-12-13 19:50:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:59,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117067862] [2022-12-13 19:50:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:59,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:59,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:59,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:59,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:59,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1421192, now seen corresponding path program 2 times [2022-12-13 19:50:59,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:59,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887226348] [2022-12-13 19:50:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:59,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:59,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:50:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:50:59,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:50:59,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:50:59,094 INFO L85 PathProgramCache]: Analyzing trace with hash 83344604, now seen corresponding path program 1 times [2022-12-13 19:50:59,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:50:59,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509551452] [2022-12-13 19:50:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:50:59,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:50:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:50:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:50:59,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:50:59,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509551452] [2022-12-13 19:50:59,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509551452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:50:59,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:50:59,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:50:59,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039371695] [2022-12-13 19:50:59,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:50:59,202 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 19:50:59,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 19:50:59,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 19:50:59,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 19:50:59,203 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 19:50:59,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 19:50:59,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 19:50:59,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Loop [2022-12-13 19:50:59,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 19:50:59,203 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 19:50:59,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:59,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:59,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:59,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:59,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:59,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 19:50:59,329 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 19:50:59,329 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 19:50:59,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,330 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 19:50:59,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:59,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:59,350 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_6=0} Honda state: {v_rep~unnamed0~0~P_ALL_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:59,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 19:50:59,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,354 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 19:50:59,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:59,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 19:50:59,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,372 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 19:50:59,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 19:50:59,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,554 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:59,554 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Honda state: {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~a~0#1=-4} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=4, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2022-12-13 19:50:59,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 19:50:59,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,564 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 19:50:59,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-12-13 19:50:59,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:59,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:59,577 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:59,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 19:50:59,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,580 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 19:50:59,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:59,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:59,600 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_6=2} Honda state: {v_rep~unnamed0~0~P_PGID_6=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:59,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 19:50:59,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,604 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 19:50:59,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:59,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,624 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:59,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_6=1} Honda state: {v_rep~unnamed0~0~P_PID_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:59,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 19:50:59,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 19:50:59,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:50:59,627 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 19:50:59,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 19:50:59,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 19:50:59,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 19:50:59,640 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 19:50:59,640 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 19:50:59,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-12-13 19:50:59,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:50:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:50:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:50:59,645 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2022-12-13 19:50:59,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:50:59,658 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-12-13 19:50:59,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-12-13 19:50:59,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 19:50:59,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-12-13 19:50:59,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 19:50:59,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 19:50:59,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 19:50:59,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:50:59,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:50:59,660 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:50:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:50:59,661 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:50:59,661 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 19:50:59,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:50:59,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 19:50:59,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 19:50:59,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 07:50:59 BoogieIcfgContainer [2022-12-13 19:50:59,666 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 19:50:59,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:50:59,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:50:59,667 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:50:59,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:50:55" (3/4) ... [2022-12-13 19:50:59,669 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:50:59,669 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:50:59,670 INFO L158 Benchmark]: Toolchain (without parser) took 4227.25ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 110.3MB in the beginning and 142.2MB in the end (delta: -31.9MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-12-13 19:50:59,670 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:50:59,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.61ms. Allocated memory is still 146.8MB. Free memory was 110.3MB in the beginning and 95.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 19:50:59,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.42ms. Allocated memory is still 146.8MB. Free memory was 95.1MB in the beginning and 93.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:50:59,671 INFO L158 Benchmark]: Boogie Preprocessor took 21.16ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 92.2MB in the end (delta: 859.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:50:59,671 INFO L158 Benchmark]: RCFGBuilder took 212.28ms. Allocated memory is still 146.8MB. Free memory was 92.2MB in the beginning and 83.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 19:50:59,671 INFO L158 Benchmark]: BuchiAutomizer took 3667.52ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 83.0MB in the beginning and 142.2MB in the end (delta: -59.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:50:59,672 INFO L158 Benchmark]: Witness Printer took 2.55ms. Allocated memory is still 184.5MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:50:59,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.61ms. Allocated memory is still 146.8MB. Free memory was 110.3MB in the beginning and 95.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.42ms. Allocated memory is still 146.8MB. Free memory was 95.1MB in the beginning and 93.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.16ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 92.2MB in the end (delta: 859.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.28ms. Allocated memory is still 146.8MB. Free memory was 92.2MB in the beginning and 83.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3667.52ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 83.0MB in the beginning and 142.2MB in the end (delta: -59.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.55ms. Allocated memory is still 184.5MB. Free memory is still 142.2MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function a and consists of 5 locations. One deterministic module has affine ranking function a and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 22 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital39 mio100 ax161 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf95 smp100 dnf1232 smp39 tf104 neg96 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 504ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 19:50:59,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0f3af3-1860-4528-8870-a42556303398/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE