./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d852cbbb6aa933b5bfc297e03d0d3456bac2eafa50ad19971e71951b44cb15d3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:27:17,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:27:17,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:27:17,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:27:17,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:27:17,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:27:17,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:27:17,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:27:17,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:27:17,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:27:17,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:27:17,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:27:17,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:27:17,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:27:17,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:27:17,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:27:17,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:27:17,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:27:17,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:27:17,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:27:17,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:27:17,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:27:17,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:27:17,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:27:17,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:27:17,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:27:17,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:27:17,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:27:17,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:27:17,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:27:17,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:27:17,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:27:17,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:27:17,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:27:17,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:27:17,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:27:17,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:27:17,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:27:17,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:27:17,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:27:17,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:27:17,638 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 20:27:17,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:27:17,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:27:17,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:27:17,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:27:17,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:27:17,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:27:17,690 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:27:17,690 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:27:17,692 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:27:17,692 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:27:17,693 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:27:17,694 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:27:17,694 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:27:17,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:27:17,695 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:27:17,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:27:17,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:27:17,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:27:17,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:27:17,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:27:17,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:27:17,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:27:17,697 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:27:17,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:27:17,698 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:27:17,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:27:17,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:27:17,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:27:17,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:27:17,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:27:17,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:27:17,701 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:27:17,702 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_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d852cbbb6aa933b5bfc297e03d0d3456bac2eafa50ad19971e71951b44cb15d3 [2022-11-02 20:27:18,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:27:18,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:27:18,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:27:18,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:27:18,093 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:27:18,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2022-11-02 20:27:18,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/data/6eb953d64/7d610721864a4ba88d06f239001e6c91/FLAGfff5c9701 [2022-11-02 20:27:18,693 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:27:18,693 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2022-11-02 20:27:18,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/data/6eb953d64/7d610721864a4ba88d06f239001e6c91/FLAGfff5c9701 [2022-11-02 20:27:19,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/data/6eb953d64/7d610721864a4ba88d06f239001e6c91 [2022-11-02 20:27:19,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:27:19,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:27:19,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:27:19,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:27:19,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:27:19,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5647740a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19, skipping insertion in model container [2022-11-02 20:27:19,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:27:19,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:27:19,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c[5984,5997] [2022-11-02 20:27:19,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:27:19,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:27:19,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c[5984,5997] [2022-11-02 20:27:19,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:27:19,503 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:27:19,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19 WrapperNode [2022-11-02 20:27:19,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:27:19,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:27:19,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:27:19,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:27:19,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,573 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 208 [2022-11-02 20:27:19,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:27:19,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:27:19,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:27:19,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:27:19,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:27:19,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:27:19,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:27:19,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:27:19,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (1/1) ... [2022-11-02 20:27:19,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:19,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:19,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:19,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:27:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:27:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:27:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:27:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:27:19,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:27:19,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:27:20,205 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:27:20,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:27:20,218 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:27:20,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:20 BoogieIcfgContainer [2022-11-02 20:27:20,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:27:20,227 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:27:20,227 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:27:20,243 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:27:20,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:27:20,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:27:19" (1/3) ... [2022-11-02 20:27:20,246 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41bd6b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:27:20, skipping insertion in model container [2022-11-02 20:27:20,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:27:20,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:19" (2/3) ... [2022-11-02 20:27:20,247 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41bd6b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:27:20, skipping insertion in model container [2022-11-02 20:27:20,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:27:20,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:20" (3/3) ... [2022-11-02 20:27:20,249 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2022-11-02 20:27:20,322 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:27:20,322 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:27:20,322 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:27:20,322 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:27:20,323 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:27:20,323 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:27:20,323 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:27:20,323 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:27:20,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 61 states, 60 states have (on average 1.6666666666666667) internal successors, (100), 60 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-11-02 20:27:20,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:27:20,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:27:20,368 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:20,368 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:20,368 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:27:20,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 61 states, 60 states have (on average 1.6666666666666667) internal successors, (100), 60 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-11-02 20:27:20,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:27:20,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:27:20,378 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:20,379 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:20,388 INFO L748 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~post22#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~id1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~st1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~send1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~mode1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode2~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 40#L131true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 23#L131-1true init_#res#1 := init_~tmp~0#1; 58#L196true main_#t~ret20#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 59#L248true assume !(0 == main_~i2~0#1); 29#L248-2true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 11#L256-2true [2022-11-02 20:27:20,389 INFO L750 eck$LassoCheckResult]: Loop: 11#L256-2true assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 3#L54true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 33#L58true assume !(node1_~m1~0#1 != ~nomsg~0); 10#L58-1true ~mode1~0 := 0; 12#L54-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 19#L82true assume !(0 != ~mode2~0 % 256); 17#L95true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 28#L95-2true ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 54#L82-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 49#L107true assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 5#L110true assume !(node3_~m3~0#1 != ~nomsg~0); 15#L110-1true ~mode3~0 := 0; 60#L107-2true assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 36#L204true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 48#L204-1true check_#res#1 := check_~tmp~1#1; 13#L224true main_#t~ret21#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 21#L280true assume !(0 == assert_~arg#1 % 256); 38#L275true assume { :end_inline_assert } true;main_#t~post22#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post22#1;havoc main_#t~post22#1; 11#L256-2true [2022-11-02 20:27:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1892699938, now seen corresponding path program 1 times [2022-11-02 20:27:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:20,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928964236] [2022-11-02 20:27:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:20,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:20,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:20,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:20,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928964236] [2022-11-02 20:27:20,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928964236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:20,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:20,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:20,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054531169] [2022-11-02 20:27:20,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:20,696 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:27:20,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:20,697 INFO L85 PathProgramCache]: Analyzing trace with hash 855687206, now seen corresponding path program 1 times [2022-11-02 20:27:20,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:20,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168131447] [2022-11-02 20:27:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:20,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:21,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:21,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168131447] [2022-11-02 20:27:21,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168131447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:21,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:21,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:21,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717494398] [2022-11-02 20:27:21,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:21,076 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:27:21,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:21,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:27:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:21,120 INFO L87 Difference]: Start difference. First operand has 61 states, 60 states have (on average 1.6666666666666667) internal successors, (100), 60 states have internal predecessors, (100), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:21,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:21,210 INFO L93 Difference]: Finished difference Result 99 states and 154 transitions. [2022-11-02 20:27:21,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 154 transitions. [2022-11-02 20:27:21,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2022-11-02 20:27:21,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 90 states and 130 transitions. [2022-11-02 20:27:21,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2022-11-02 20:27:21,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2022-11-02 20:27:21,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 130 transitions. [2022-11-02 20:27:21,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:21,223 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 130 transitions. [2022-11-02 20:27:21,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 130 transitions. [2022-11-02 20:27:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 56. [2022-11-02 20:27:21,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 55 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:21,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2022-11-02 20:27:21,254 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 76 transitions. [2022-11-02 20:27:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:27:21,259 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 76 transitions. [2022-11-02 20:27:21,259 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:27:21,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 76 transitions. [2022-11-02 20:27:21,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2022-11-02 20:27:21,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:27:21,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:27:21,262 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:21,262 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:21,262 INFO L748 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 221#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~post22#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~id1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~st1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~send1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~mode1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode2~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 222#L131 assume 0 == ~r1~0; 227#L132 assume ~id1~0 >= 0; 225#L133 assume 0 == ~st1~0; 226#L134 assume ~send1~0 == ~id1~0; 219#L135 assume 0 == ~mode1~0 % 256; 198#L136 assume ~id2~0 >= 0; 199#L137 assume 0 == ~st2~0; 232#L138 assume ~send2~0 == ~id2~0; 210#L139 assume 0 == ~mode2~0 % 256; 211#L140 assume ~id3~0 >= 0; 228#L141 assume 0 == ~st3~0; 215#L142 assume ~send3~0 == ~id3~0; 213#L143 assume 0 == ~mode3~0 % 256; 187#L144 assume ~id1~0 != ~id2~0; 188#L145 assume ~id1~0 != ~id3~0; 201#L146 assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; 202#L131-1 init_#res#1 := init_~tmp~0#1; 209#L196 main_#t~ret20#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 233#L248 assume !(0 == main_~i2~0#1); 216#L248-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 194#L256-2 [2022-11-02 20:27:21,263 INFO L750 eck$LassoCheckResult]: Loop: 194#L256-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 178#L54 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 179#L58 assume !(node1_~m1~0#1 != ~nomsg~0); 192#L58-1 ~mode1~0 := 0; 193#L54-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 195#L82 assume !(0 != ~mode2~0 % 256); 203#L95 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 204#L95-2 ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 214#L82-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 231#L107 assume !(0 != ~mode3~0 % 256); 229#L120 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite6#1 := ~send3~0; 212#L120-2 ~p3_new~0 := (if node3_#t~ite6#1 % 256 <= 127 then node3_#t~ite6#1 % 256 else node3_#t~ite6#1 % 256 - 256);havoc node3_#t~ite6#1;~mode3~0 := 1; 200#L107-2 assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 223#L204 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 220#L204-1 check_#res#1 := check_~tmp~1#1; 196#L224 main_#t~ret21#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 197#L280 assume !(0 == assert_~arg#1 % 256); 207#L275 assume { :end_inline_assert } true;main_#t~post22#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post22#1;havoc main_#t~post22#1; 194#L256-2 [2022-11-02 20:27:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1473464705, now seen corresponding path program 1 times [2022-11-02 20:27:21,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710943071] [2022-11-02 20:27:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:27:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:27:21,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2073672604, now seen corresponding path program 1 times [2022-11-02 20:27:21,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864246345] [2022-11-02 20:27:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:21,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:21,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864246345] [2022-11-02 20:27:21,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864246345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:21,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:21,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:21,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223282327] [2022-11-02 20:27:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:21,584 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:27:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:27:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:21,585 INFO L87 Difference]: Start difference. First operand 56 states and 76 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:21,632 INFO L93 Difference]: Finished difference Result 59 states and 78 transitions. [2022-11-02 20:27:21,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 78 transitions. [2022-11-02 20:27:21,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2022-11-02 20:27:21,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 56 states and 73 transitions. [2022-11-02 20:27:21,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-02 20:27:21,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-11-02 20:27:21,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 73 transitions. [2022-11-02 20:27:21,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:21,636 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 73 transitions. [2022-11-02 20:27:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 73 transitions. [2022-11-02 20:27:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-02 20:27:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 55 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:21,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 73 transitions. [2022-11-02 20:27:21,640 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 73 transitions. [2022-11-02 20:27:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:27:21,642 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 73 transitions. [2022-11-02 20:27:21,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:27:21,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 73 transitions. [2022-11-02 20:27:21,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2022-11-02 20:27:21,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:27:21,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:27:21,644 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:21,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:21,645 INFO L748 eck$LassoCheckResult]: Stem: 357#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 347#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~post22#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~id1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~st1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~send1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~mode1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode2~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 348#L131 assume 0 == ~r1~0; 354#L132 assume ~id1~0 >= 0; 352#L133 assume 0 == ~st1~0; 353#L134 assume ~send1~0 == ~id1~0; 346#L135 assume 0 == ~mode1~0 % 256; 325#L136 assume ~id2~0 >= 0; 326#L137 assume 0 == ~st2~0; 359#L138 assume ~send2~0 == ~id2~0; 337#L139 assume 0 == ~mode2~0 % 256; 338#L140 assume ~id3~0 >= 0; 355#L141 assume 0 == ~st3~0; 342#L142 assume ~send3~0 == ~id3~0; 340#L143 assume 0 == ~mode3~0 % 256; 314#L144 assume ~id1~0 != ~id2~0; 315#L145 assume ~id1~0 != ~id3~0; 328#L146 assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; 329#L131-1 init_#res#1 := init_~tmp~0#1; 336#L196 main_#t~ret20#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 360#L248 assume !(0 == main_~i2~0#1); 343#L248-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 321#L256-2 [2022-11-02 20:27:21,645 INFO L750 eck$LassoCheckResult]: Loop: 321#L256-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 305#L54 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 306#L58 assume !(node1_~m1~0#1 != ~nomsg~0); 319#L58-1 ~mode1~0 := 0; 320#L54-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 322#L82 assume !(0 != ~mode2~0 % 256); 330#L95 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 331#L95-2 ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 341#L82-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 358#L107 assume !(0 != ~mode3~0 % 256); 356#L120 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite6#1 := ~send3~0; 339#L120-2 ~p3_new~0 := (if node3_#t~ite6#1 % 256 <= 127 then node3_#t~ite6#1 % 256 else node3_#t~ite6#1 % 256 - 256);havoc node3_#t~ite6#1;~mode3~0 := 1; 327#L107-2 assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 349#L204 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 316#L205 assume ~r1~0 >= 3; 318#L209 assume ~r1~0 < 3;check_~tmp~1#1 := 1; 350#L204-1 check_#res#1 := check_~tmp~1#1; 323#L224 main_#t~ret21#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 324#L280 assume !(0 == assert_~arg#1 % 256); 334#L275 assume { :end_inline_assert } true;main_#t~post22#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post22#1;havoc main_#t~post22#1; 321#L256-2 [2022-11-02 20:27:21,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1473464705, now seen corresponding path program 2 times [2022-11-02 20:27:21,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170342363] [2022-11-02 20:27:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:27:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:27:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1481276532, now seen corresponding path program 1 times [2022-11-02 20:27:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294529552] [2022-11-02 20:27:21,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:21,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:21,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294529552] [2022-11-02 20:27:21,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294529552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:21,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:21,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:27:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722214172] [2022-11-02 20:27:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:21,727 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:27:21,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:27:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:27:21,729 INFO L87 Difference]: Start difference. First operand 56 states and 73 transitions. cyclomatic complexity: 18 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:21,768 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2022-11-02 20:27:21,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 113 transitions. [2022-11-02 20:27:21,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2022-11-02 20:27:21,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 84 states and 113 transitions. [2022-11-02 20:27:21,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2022-11-02 20:27:21,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2022-11-02 20:27:21,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 113 transitions. [2022-11-02 20:27:21,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:21,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84 states and 113 transitions. [2022-11-02 20:27:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 113 transitions. [2022-11-02 20:27:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-02 20:27:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 83 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2022-11-02 20:27:21,794 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84 states and 113 transitions. [2022-11-02 20:27:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:27:21,795 INFO L428 stractBuchiCegarLoop]: Abstraction has 84 states and 113 transitions. [2022-11-02 20:27:21,796 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:27:21,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 113 transitions. [2022-11-02 20:27:21,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2022-11-02 20:27:21,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:27:21,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:27:21,800 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:21,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:21,802 INFO L748 eck$LassoCheckResult]: Stem: 506#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 495#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~post22#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~id1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~st1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~send1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~mode1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~id2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~st2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~send2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~mode2~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~mode3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 496#L131 assume 0 == ~r1~0; 503#L132 assume ~id1~0 >= 0; 501#L133 assume 0 == ~st1~0; 502#L134 assume ~send1~0 == ~id1~0; 492#L135 assume 0 == ~mode1~0 % 256; 470#L136 assume ~id2~0 >= 0; 471#L137 assume 0 == ~st2~0; 511#L138 assume ~send2~0 == ~id2~0; 482#L139 assume 0 == ~mode2~0 % 256; 483#L140 assume ~id3~0 >= 0; 504#L141 assume 0 == ~st3~0; 487#L142 assume ~send3~0 == ~id3~0; 485#L143 assume 0 == ~mode3~0 % 256; 460#L144 assume ~id1~0 != ~id2~0; 461#L145 assume ~id1~0 != ~id3~0; 473#L146 assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; 474#L131-1 init_#res#1 := init_~tmp~0#1; 481#L196 main_#t~ret20#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 512#L248 assume !(0 == main_~i2~0#1); 488#L248-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 466#L256-2 [2022-11-02 20:27:21,803 INFO L750 eck$LassoCheckResult]: Loop: 466#L256-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 451#L54 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 452#L58 assume !(node1_~m1~0#1 != ~nomsg~0); 464#L58-1 ~mode1~0 := 0; 465#L54-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 467#L82 assume !(0 != ~mode2~0 % 256); 475#L95 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 476#L95-2 ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 486#L82-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 509#L107 assume !(0 != ~mode3~0 % 256); 505#L120 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite6#1 := ~send3~0; 484#L120-2 ~p3_new~0 := (if node3_#t~ite6#1 % 256 <= 127 then node3_#t~ite6#1 % 256 else node3_#t~ite6#1 % 256 - 256);havoc node3_#t~ite6#1;~mode3~0 := 1; 472#L107-2 assume { :end_inline_node3 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 513#L204 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 514#L205 assume !(~r1~0 >= 3); 493#L208 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 494#L209 assume ~r1~0 < 3;check_~tmp~1#1 := 1; 508#L204-1 check_#res#1 := check_~tmp~1#1; 468#L224 main_#t~ret21#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 469#L280 assume !(0 == assert_~arg#1 % 256); 479#L275 assume { :end_inline_assert } true;main_#t~post22#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post22#1;havoc main_#t~post22#1; 466#L256-2 [2022-11-02 20:27:21,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1473464705, now seen corresponding path program 3 times [2022-11-02 20:27:21,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078762048] [2022-11-02 20:27:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:27:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:27:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1323327703, now seen corresponding path program 1 times [2022-11-02 20:27:21,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196899977] [2022-11-02 20:27:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:27:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:27:21,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:27:21,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:21,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1693614955, now seen corresponding path program 1 times [2022-11-02 20:27:21,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:21,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75560927] [2022-11-02 20:27:21,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:21,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:21,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:21,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75560927] [2022-11-02 20:27:21,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75560927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:21,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:21,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:27:21,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507771180] [2022-11-02 20:27:21,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:22,895 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:27:22,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:27:22,896 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:27:22,896 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:27:22,896 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:27:22,896 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:22,896 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:27:22,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:27:22,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-02 20:27:22,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:27:22,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:27:22,919 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:22,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:22,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,082 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,085 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,106 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,138 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:23,707 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-02 20:27:27,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:27:27,544 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:27:27,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:27,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:27,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:27,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:27:27,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:27:27,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:27:27,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:27,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:27,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:27,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:27,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:27:27,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:27:27,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:27:27,787 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:27:27,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:27,791 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:27:27,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:27:27,791 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:27:27,791 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:27:27,791 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:27:27,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:27,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:27:27,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:27:27,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-02 20:27:27,792 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:27:27,792 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:27:27,798 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,968 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,976 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,987 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,993 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:27,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:28,011 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:28,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:27:28,516 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-02 20:27:31,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:27:31,963 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:27:31,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:31,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:31,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:31,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:31,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:27:31,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:31,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:31,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:31,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:27:31,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:31,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:27:31,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,010 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:27:32,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:32,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:27:32,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:32,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:32,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:32,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:32,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:27:32,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:32,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:27:32,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:27:32,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-02 20:27:32,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:27:32,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:32,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:32,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:32,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:32,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:27:32,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:32,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:27:32,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:27:32,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:32,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:27:32,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:32,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:32,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:32,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:32,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:27:32,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:32,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:27:32,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:27:32,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:32,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,220 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:32,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:27:32,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:32,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:32,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:32,235 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:27:32,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:32,237 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:27:32,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:27:32,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:32,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,311 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:27:32,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:32,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:32,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:32,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:32,326 INFO L204 nArgumentSynthesizer]: 16 loop disjuncts [2022-11-02 20:27:32,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:32,437 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2022-11-02 20:27:32,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:27:32,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-02 20:27:32,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,548 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:27:32,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:27:32,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:27:32,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:27:32,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:27:32,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:27:32,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:27:32,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:27:32,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:27:32,564 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:27:32,597 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:27:32,597 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:27:32,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:27:32,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:32,619 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:32,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:27:32,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:27:32,628 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:27:32,628 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 11 Supporting invariants [] [2022-11-02 20:27:32,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:27:32,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:32,657 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:27:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:32,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:27:32,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:32,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:27:32,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:32,969 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 20:27:32,970 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 84 states and 113 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:33,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 84 states and 113 transitions. cyclomatic complexity: 30. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 145 states and 204 transitions. Complement of second has 4 states. [2022-11-02 20:27:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 20:27:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2022-11-02 20:27:33,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 73 transitions. Stem has 22 letters. Loop has 21 letters. [2022-11-02 20:27:33,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:27:33,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 73 transitions. Stem has 43 letters. Loop has 21 letters. [2022-11-02 20:27:33,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:27:33,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 73 transitions. Stem has 22 letters. Loop has 42 letters. [2022-11-02 20:27:33,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:27:33,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 204 transitions. [2022-11-02 20:27:33,048 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:27:33,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 0 states and 0 transitions. [2022-11-02 20:27:33,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:27:33,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:27:33,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:27:33,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:33,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:27:33,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:27:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:27:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:27:33,052 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:33,053 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-02 20:27:33,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-02 20:27:33,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:27:33,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:27:33,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:27:33,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:27:33,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:27:33,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:33,054 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:27:33,054 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:27:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:27:33,055 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:27:33,055 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:27:33,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:27:33,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:27:33,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:27:33,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:27:33 BoogieIcfgContainer [2022-11-02 20:27:33,063 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:27:33,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:27:33,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:27:33,065 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:27:33,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:20" (3/4) ... [2022-11-02 20:27:33,068 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:27:33,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:27:33,069 INFO L158 Benchmark]: Toolchain (without parser) took 14028.18ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 83.2MB in the beginning and 91.0MB in the end (delta: -7.7MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2022-11-02 20:27:33,070 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 69.4MB in the beginning and 69.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:27:33,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.17ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 85.1MB in the end (delta: -2.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:27:33,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.81ms. Allocated memory is still 113.2MB. Free memory was 85.1MB in the beginning and 82.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:27:33,071 INFO L158 Benchmark]: Boogie Preprocessor took 51.81ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 81.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:27:33,072 INFO L158 Benchmark]: RCFGBuilder took 593.50ms. Allocated memory is still 113.2MB. Free memory was 81.3MB in the beginning and 64.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-02 20:27:33,073 INFO L158 Benchmark]: BuchiAutomizer took 12836.41ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 64.5MB in the beginning and 91.0MB in the end (delta: -26.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-02 20:27:33,073 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 165.7MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:27:33,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 69.4MB in the beginning and 69.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.17ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 85.1MB in the end (delta: -2.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.81ms. Allocated memory is still 113.2MB. Free memory was 85.1MB in the beginning and 82.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.81ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 81.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.50ms. Allocated memory is still 113.2MB. Free memory was 81.3MB in the beginning and 64.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 12836.41ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 64.5MB in the beginning and 91.0MB in the end (delta: -26.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 165.7MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 11.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 932 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 585 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 347 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital176 mio100 ax100 hnf100 lsp65 ukn77 mio100 lsp100 div168 bol100 ite100 ukn100 eq165 hnf94 smp72 dnf2826 smp41 tf100 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 215ms VariablesStem: 0 VariablesLoop: 20 DisjunctsStem: 1 DisjunctsLoop: 16 SupportingInvariants: 0 MotzkinApplications: 32 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 20:27:33,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:33,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff644d6-8249-46c9-8eca-1058a95dd5ed/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE