./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a 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_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R --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 17ba764d4851428799f2c4794a4662e2753aae472d291b23839dac79bbfbab6d --- 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-38b53e6 [2022-11-25 16:42:55,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:42:55,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:42:55,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:42:55,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:42:55,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:42:55,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:42:55,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:42:55,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:42:55,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:42:55,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:42:55,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:42:55,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:42:55,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:42:55,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:42:55,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:42:55,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:42:55,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:42:55,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:42:55,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:42:55,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:42:55,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:42:55,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:42:55,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:42:55,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:42:55,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:42:55,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:42:55,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:42:55,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:42:55,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:42:55,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:42:55,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:42:55,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:42:55,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:42:55,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:42:55,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:42:55,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:42:55,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:42:55,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:42:55,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:42:55,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:42:55,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 16:42:55,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:42:55,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:42:55,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:42:55,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:42:55,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:42:55,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:42:55,560 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:42:55,560 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 16:42:55,560 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 16:42:55,561 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 16:42:55,562 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 16:42:55,562 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 16:42:55,563 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 16:42:55,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:42:55,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:42:55,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:42:55,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:42:55,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:42:55,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:42:55,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 16:42:55,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 16:42:55,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 16:42:55,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:42:55,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:42:55,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 16:42:55,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:42:55,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 16:42:55,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:42:55,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:42:55,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:42:55,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:42:55,571 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 16:42:55,571 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_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17ba764d4851428799f2c4794a4662e2753aae472d291b23839dac79bbfbab6d [2022-11-25 16:42:55,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:42:55,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:42:55,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:42:55,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:42:55,907 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:42:55,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2022-11-25 16:42:59,043 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:42:59,303 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:42:59,304 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2022-11-25 16:42:59,319 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/data/b9a52617d/1a003fa900e64ee3a35d1ee0363381f3/FLAG49609a9db [2022-11-25 16:42:59,344 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/data/b9a52617d/1a003fa900e64ee3a35d1ee0363381f3 [2022-11-25 16:42:59,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:42:59,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:42:59,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:42:59,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:42:59,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:42:59,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15257672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59, skipping insertion in model container [2022-11-25 16:42:59,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:42:59,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:42:59,650 WARN L237 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_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c[9392,9405] [2022-11-25 16:42:59,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:59,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:42:59,758 WARN L237 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_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c[9392,9405] [2022-11-25 16:42:59,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:59,776 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:42:59,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59 WrapperNode [2022-11-25 16:42:59,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:42:59,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:42:59,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:42:59,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:42:59,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,856 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 272 [2022-11-25 16:42:59,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:42:59,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:42:59,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:42:59,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:42:59,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:42:59,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:42:59,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:42:59,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:42:59,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (1/1) ... [2022-11-25 16:42:59,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:42:59,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:59,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:42:59,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 16:42:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:42:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:42:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:42:59,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:43:00,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:43:00,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:43:00,647 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:43:00,670 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:43:00,671 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 16:43:00,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:00 BoogieIcfgContainer [2022-11-25 16:43:00,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:43:00,674 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 16:43:00,675 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 16:43:00,679 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 16:43:00,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 16:43:00,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 04:42:59" (1/3) ... [2022-11-25 16:43:00,685 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e5b3779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 04:43:00, skipping insertion in model container [2022-11-25 16:43:00,699 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 16:43:00,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:59" (2/3) ... [2022-11-25 16:43:00,699 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e5b3779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 04:43:00, skipping insertion in model container [2022-11-25 16:43:00,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 16:43:00,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:00" (3/3) ... [2022-11-25 16:43:00,701 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2022-11-25 16:43:00,798 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 16:43:00,813 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 16:43:00,813 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 16:43:00,813 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 16:43:00,813 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 16:43:00,814 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 16:43:00,814 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 16:43:00,814 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 16:43:00,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.7195121951219512) internal successors, (141), 82 states have internal predecessors, (141), 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) [2022-11-25 16:43:00,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-25 16:43:00,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 16:43:00,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 16:43:00,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:00,855 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, 1] [2022-11-25 16:43:00,855 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 16:43:00,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.7195121951219512) internal successors, (141), 82 states have internal predecessors, (141), 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) [2022-11-25 16:43:00,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-25 16:43:00,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 16:43:00,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 16:43:00,864 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:00,864 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, 1] [2022-11-25 16:43:00,877 INFO L748 eck$LassoCheckResult]: Stem: 61#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(47, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, 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~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#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~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~alive1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~mode2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~alive2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~mode3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~alive3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode4~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~alive4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 75#L201true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 33#L201-1true init_#res#1 := init_~tmp~0#1; 37#L298true main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 44#L350true assume !(0 == main_~i2~0#1); 52#L350-2true ~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;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 31#L360-2true [2022-11-25 16:43:00,886 INFO L750 eck$LassoCheckResult]: Loop: 31#L360-2true assume !!(main_~i2~0#1 < 8);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 83#L65true assume !(0 != ~mode1~0 % 256); 30#L83true assume 0 != ~alive1~0 % 256;~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256); 79#L86-2true ~mode1~0 := 1; 47#L65-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 66#L100true assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 60#L103true assume !(node2_~m2~0#1 != ~nomsg~0); 55#L103-1true ~mode2~0 := 0; 41#L100-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 63#L134true assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 72#L137true assume !(node3_~m3~0#1 != ~nomsg~0); 17#L137-1true ~mode3~0 := 0; 76#L134-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 5#L168true assume !(0 != ~mode4~0 % 256); 39#L185true assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256); 12#L188-2true ~mode4~0 := 1; 15#L168-2true assume { :end_inline_node4 } 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;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 71#L306true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 58#L306-1true check_#res#1 := check_~tmp~1#1; 68#L318true main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#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; 62#L387true assume !(0 == assert_~arg#1 % 256); 59#L382true assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 31#L360-2true [2022-11-25 16:43:00,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1938506578, now seen corresponding path program 1 times [2022-11-25 16:43:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:00,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477400200] [2022-11-25 16:43:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:00,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:01,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:01,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477400200] [2022-11-25 16:43:01,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477400200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:01,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:01,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:43:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963234629] [2022-11-25 16:43:01,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:01,239 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-25 16:43:01,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:01,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1904220907, now seen corresponding path program 1 times [2022-11-25 16:43:01,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:01,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42110859] [2022-11-25 16:43:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:01,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:01,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:01,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42110859] [2022-11-25 16:43:01,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42110859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:01,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:01,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:43:01,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783480438] [2022-11-25 16:43:01,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:01,738 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 16:43:01,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:01,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:43:01,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:43:01,812 INFO L87 Difference]: Start difference. First operand has 83 states, 82 states have (on average 1.7195121951219512) internal successors, (141), 82 states have internal predecessors, (141), 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) [2022-11-25 16:43:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:02,011 INFO L93 Difference]: Finished difference Result 135 states and 220 transitions. [2022-11-25 16:43:02,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 220 transitions. [2022-11-25 16:43:02,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 48 [2022-11-25 16:43:02,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 126 states and 188 transitions. [2022-11-25 16:43:02,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2022-11-25 16:43:02,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2022-11-25 16:43:02,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 188 transitions. [2022-11-25 16:43:02,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:43:02,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 188 transitions. [2022-11-25 16:43:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 188 transitions. [2022-11-25 16:43:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 78. [2022-11-25 16:43:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 77 states have internal predecessors, (109), 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) [2022-11-25 16:43:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2022-11-25 16:43:02,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 109 transitions. [2022-11-25 16:43:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:43:02,086 INFO L428 stractBuchiCegarLoop]: Abstraction has 78 states and 109 transitions. [2022-11-25 16:43:02,086 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 16:43:02,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 109 transitions. [2022-11-25 16:43:02,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 48 [2022-11-25 16:43:02,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 16:43:02,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 16:43:02,090 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:02,091 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, 1] [2022-11-25 16:43:02,091 INFO L748 eck$LassoCheckResult]: Stem: 307#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(47, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, 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~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#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~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~alive1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~mode2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~alive2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~mode3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~alive3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode4~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~alive4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 299#L201 assume 0 == ~r1~0; 277#L202 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 278#L203 assume ~id1~0 >= 0; 287#L204 assume 0 == ~st1~0; 255#L205 assume ~send1~0 == ~id1~0; 256#L206 assume 0 == ~mode1~0 % 256; 243#L207 assume ~id2~0 >= 0; 244#L208 assume 0 == ~st2~0; 295#L209 assume ~send2~0 == ~id2~0; 257#L210 assume 0 == ~mode2~0 % 256; 258#L211 assume ~id3~0 >= 0; 250#L212 assume 0 == ~st3~0; 251#L213 assume ~send3~0 == ~id3~0; 310#L214 assume 0 == ~mode3~0 % 256; 311#L215 assume ~id4~0 >= 0; 294#L216 assume 0 == ~st4~0; 280#L217 assume ~send4~0 == ~id4~0; 281#L218 assume 0 == ~mode4~0 % 256; 300#L219 assume ~id1~0 != ~id2~0; 313#L220 assume ~id1~0 != ~id3~0; 273#L221 assume ~id1~0 != ~id4~0; 271#L222 assume ~id2~0 != ~id3~0; 272#L223 assume ~id2~0 != ~id4~0; 263#L224 assume ~id3~0 != ~id4~0;init_~tmp~0#1 := 1; 264#L201-1 init_#res#1 := init_~tmp~0#1; 285#L298 main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 290#L350 assume !(0 == main_~i2~0#1); 293#L350-2 ~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;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 283#L360-2 [2022-11-25 16:43:02,092 INFO L750 eck$LassoCheckResult]: Loop: 283#L360-2 assume !!(main_~i2~0#1 < 8);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 284#L65 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 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 265#L69 assume !(node1_~m1~0#1 != ~nomsg~0); 239#L69-1 ~mode1~0 := 0; 296#L65-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 297#L100 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 306#L103 assume !(node2_~m2~0#1 != ~nomsg~0); 275#L103-1 ~mode2~0 := 0; 291#L100-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 292#L134 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 309#L137 assume !(node3_~m3~0#1 != ~nomsg~0); 261#L137-1 ~mode3~0 := 0; 262#L134-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 240#L168 assume !(0 != ~mode4~0 % 256); 241#L185 assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256); 253#L188-2 ~mode4~0 := 1; 254#L168-2 assume { :end_inline_node4 } 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;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 259#L306 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 249#L306-1 check_#res#1 := check_~tmp~1#1; 304#L318 main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#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; 308#L387 assume !(0 == assert_~arg#1 % 256); 305#L382 assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 283#L360-2 [2022-11-25 16:43:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 1 times [2022-11-25 16:43:02,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:02,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163863560] [2022-11-25 16:43:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:02,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:02,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:43:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:02,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:43:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:02,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1791428950, now seen corresponding path program 1 times [2022-11-25 16:43:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:02,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156328579] [2022-11-25 16:43:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:02,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:02,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156328579] [2022-11-25 16:43:02,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156328579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:02,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:02,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:43:02,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611915808] [2022-11-25 16:43:02,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:02,431 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 16:43:02,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:02,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:43:02,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:43:02,433 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. cyclomatic complexity: 32 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:43:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:02,505 INFO L93 Difference]: Finished difference Result 81 states and 111 transitions. [2022-11-25 16:43:02,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 111 transitions. [2022-11-25 16:43:02,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 48 [2022-11-25 16:43:02,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 78 states and 107 transitions. [2022-11-25 16:43:02,508 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 78 [2022-11-25 16:43:02,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2022-11-25 16:43:02,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 107 transitions. [2022-11-25 16:43:02,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:43:02,509 INFO L218 hiAutomatonCegarLoop]: Abstraction has 78 states and 107 transitions. [2022-11-25 16:43:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 107 transitions. [2022-11-25 16:43:02,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 16:43:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 77 states have internal predecessors, (107), 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) [2022-11-25 16:43:02,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 107 transitions. [2022-11-25 16:43:02,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 107 transitions. [2022-11-25 16:43:02,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:43:02,516 INFO L428 stractBuchiCegarLoop]: Abstraction has 78 states and 107 transitions. [2022-11-25 16:43:02,516 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 16:43:02,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 107 transitions. [2022-11-25 16:43:02,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 48 [2022-11-25 16:43:02,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 16:43:02,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 16:43:02,519 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:02,519 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, 1, 1] [2022-11-25 16:43:02,519 INFO L748 eck$LassoCheckResult]: Stem: 479#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(47, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, 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~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#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~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~alive1~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~mode2~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~alive2~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~mode3~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~alive3~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode4~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~alive4~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 470#L201 assume 0 == ~r1~0; 448#L202 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 449#L203 assume ~id1~0 >= 0; 458#L204 assume 0 == ~st1~0; 426#L205 assume ~send1~0 == ~id1~0; 427#L206 assume 0 == ~mode1~0 % 256; 416#L207 assume ~id2~0 >= 0; 417#L208 assume 0 == ~st2~0; 466#L209 assume ~send2~0 == ~id2~0; 428#L210 assume 0 == ~mode2~0 % 256; 429#L211 assume ~id3~0 >= 0; 421#L212 assume 0 == ~st3~0; 422#L213 assume ~send3~0 == ~id3~0; 481#L214 assume 0 == ~mode3~0 % 256; 482#L215 assume ~id4~0 >= 0; 465#L216 assume 0 == ~st4~0; 451#L217 assume ~send4~0 == ~id4~0; 452#L218 assume 0 == ~mode4~0 % 256; 473#L219 assume ~id1~0 != ~id2~0; 484#L220 assume ~id1~0 != ~id3~0; 444#L221 assume ~id1~0 != ~id4~0; 442#L222 assume ~id2~0 != ~id3~0; 443#L223 assume ~id2~0 != ~id4~0; 434#L224 assume ~id3~0 != ~id4~0;init_~tmp~0#1 := 1; 435#L201-1 init_#res#1 := init_~tmp~0#1; 457#L298 main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 461#L350 assume !(0 == main_~i2~0#1); 464#L350-2 ~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;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 454#L360-2 [2022-11-25 16:43:02,519 INFO L750 eck$LassoCheckResult]: Loop: 454#L360-2 assume !!(main_~i2~0#1 < 8);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 455#L65 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 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 436#L69 assume !(node1_~m1~0#1 != ~nomsg~0); 410#L69-1 ~mode1~0 := 0; 467#L65-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 468#L100 assume !(0 != ~mode2~0 % 256); 418#L117 assume 0 != ~alive2~0 % 256;~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256); 419#L120-2 ~mode2~0 := 1; 462#L100-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 463#L134 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 480#L137 assume !(node3_~m3~0#1 != ~nomsg~0); 432#L137-1 ~mode3~0 := 0; 433#L134-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 411#L168 assume !(0 != ~mode4~0 % 256); 412#L185 assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256); 424#L188-2 ~mode4~0 := 1; 425#L168-2 assume { :end_inline_node4 } 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;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 430#L306 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 431#L307 assume ~r1~0 < 4;check_~tmp~1#1 := 1; 415#L306-1 check_#res#1 := check_~tmp~1#1; 475#L318 main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#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; 478#L387 assume !(0 == assert_~arg#1 % 256); 476#L382 assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 454#L360-2 [2022-11-25 16:43:02,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:02,520 INFO L85 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 2 times [2022-11-25 16:43:02,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:02,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951785234] [2022-11-25 16:43:02,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:02,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:02,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:43:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:02,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:43:02,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:02,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2088562181, now seen corresponding path program 1 times [2022-11-25 16:43:02,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:02,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277169585] [2022-11-25 16:43:02,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:02,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:02,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:43:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:43:02,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:43:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:02,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2064580933, now seen corresponding path program 1 times [2022-11-25 16:43:02,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:02,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933263919] [2022-11-25 16:43:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:02,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:02,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:02,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933263919] [2022-11-25 16:43:02,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933263919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:02,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:02,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:43:02,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594194225] [2022-11-25 16:43:02,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:04,573 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 16:43:04,575 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 16:43:04,575 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 16:43:04,575 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 16:43:04,575 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 16:43:04,575 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:04,575 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 16:43:04,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 16:43:04,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2022-11-25 16:43:04,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 16:43:04,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 16:43:04,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:04,620 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:04,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,327 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,332 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,343 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,363 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,369 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,372 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:05,378 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:06,558 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2022-11-25 16:43:06,946 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 7979 conjuctions. This might take some time... [2022-11-25 16:43:08,132 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 414 conjuctions. [2022-11-25 16:43:28,366 WARN L233 SmtUtils]: Spent 20.20s on a formula simplification. DAG size of input: 388 DAG size of output: 152 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2022-11-25 16:43:28,547 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 16:43:28,548 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 16:43:28,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:28,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:28,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:28,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 16:43:28,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 16:43:28,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 16:43:28,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 16:43:28,604 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post27#1=0} Honda state: {ULTIMATE.start_main_#t~post27#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 16:43:28,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-25 16:43:28,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:28,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:28,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:28,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 16:43:28,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 16:43:28,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 16:43:28,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:28,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:28,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:28,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:28,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 16:43:28,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 16:43:28,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 16:43:28,913 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 16:43:28,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:28,918 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 16:43:28,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 16:43:28,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 16:43:28,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 16:43:28,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 16:43:28,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:28,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 16:43:28,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 16:43:28,918 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2022-11-25 16:43:28,918 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 16:43:28,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 16:43:28,930 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:28,938 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:28,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:28,952 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:28,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,691 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,695 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,702 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,705 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:29,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 16:43:30,922 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2022-11-25 16:43:31,139 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 9870 conjuctions. This might take some time... [2022-11-25 16:43:32,488 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 414 conjuctions. [2022-11-25 16:43:52,246 WARN L233 SmtUtils]: Spent 19.71s on a formula simplification. DAG size of input: 388 DAG size of output: 152 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2022-11-25 16:43:52,379 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 16:43:52,383 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 16:43:52,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:52,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:52,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:52,396 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 [2022-11-25 16:43:52,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 16:43:52,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 16:43:52,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 16:43:52,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 16:43:52,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 16:43:52,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 16:43:52,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 16:43:52,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 16:43:52,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 16:43:52,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:52,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:52,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:52,442 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:52,451 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 [2022-11-25 16:43:52,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 16:43:52,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 16:43:52,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 16:43:52,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 16:43:52,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 16:43:52,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 16:43:52,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 16:43:52,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 16:43:52,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 16:43:52,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:52,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:52,499 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:52,511 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 [2022-11-25 16:43:52,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 16:43:52,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 16:43:52,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 16:43:52,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 16:43:52,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 16:43:52,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 16:43:52,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 16:43:52,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 16:43:52,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 16:43:52,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:52,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:52,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:52,554 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:52,563 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 [2022-11-25 16:43:52,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 16:43:52,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 16:43:52,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 16:43:52,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 16:43:52,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 16:43:52,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 16:43:52,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 16:43:52,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 16:43:52,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 16:43:52,615 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 16:43:52,615 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 16:43:52,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 16:43:52,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:52,643 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:52,650 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 16:43:52,650 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 16:43:52,650 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 16:43:52,651 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 15 Supporting invariants [] [2022-11-25 16:43:52,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 16:43:52,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:52,661 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 16:43:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:52,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:43:52,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:52,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:43:52,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:52,984 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 [2022-11-25 16:43:52,986 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 107 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-25 16:43:53,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 107 transitions. cyclomatic complexity: 30. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 126 states and 185 transitions. Complement of second has 4 states. [2022-11-25 16:43:53,050 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 [2022-11-25 16:43:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-25 16:43:53,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2022-11-25 16:43:53,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 107 transitions. Stem has 30 letters. Loop has 23 letters. [2022-11-25 16:43:53,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 16:43:53,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 107 transitions. Stem has 53 letters. Loop has 23 letters. [2022-11-25 16:43:53,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 16:43:53,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 107 transitions. Stem has 30 letters. Loop has 46 letters. [2022-11-25 16:43:53,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 16:43:53,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 185 transitions. [2022-11-25 16:43:53,066 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 16:43:53,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 0 states and 0 transitions. [2022-11-25 16:43:53,067 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 16:43:53,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 16:43:53,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 16:43:53,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:43:53,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:43:53,069 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:43:53,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:43:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:43:53,070 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-11-25 16:43:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:53,070 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-25 16:43:53,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-25 16:43:53,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 16:43:53,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 16:43:53,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 16:43:53,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 16:43:53,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 16:43:53,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:43:53,072 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:43:53,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:43:53,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:43:53,074 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:43:53,074 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 16:43:53,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 16:43:53,074 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 16:43:53,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 16:43:53,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 04:43:53 BoogieIcfgContainer [2022-11-25 16:43:53,081 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 16:43:53,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:43:53,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:43:53,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:43:53,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:00" (3/4) ... [2022-11-25 16:43:53,087 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:43:53,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:43:53,088 INFO L158 Benchmark]: Toolchain (without parser) took 53736.64ms. Allocated memory was 134.2MB in the beginning and 383.8MB in the end (delta: 249.6MB). Free memory was 92.2MB in the beginning and 185.9MB in the end (delta: -93.7MB). Peak memory consumption was 158.5MB. Max. memory is 16.1GB. [2022-11-25 16:43:53,089 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:43:53,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.06ms. Allocated memory is still 134.2MB. Free memory was 92.2MB in the beginning and 77.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 16:43:53,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.80ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 75.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:53,094 INFO L158 Benchmark]: Boogie Preprocessor took 40.27ms. Allocated memory is still 134.2MB. Free memory was 75.0MB in the beginning and 73.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:53,094 INFO L158 Benchmark]: RCFGBuilder took 775.15ms. Allocated memory is still 134.2MB. Free memory was 73.0MB in the beginning and 99.8MB in the end (delta: -26.9MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-11-25 16:43:53,095 INFO L158 Benchmark]: BuchiAutomizer took 52407.05ms. Allocated memory was 134.2MB in the beginning and 383.8MB in the end (delta: 249.6MB). Free memory was 99.8MB in the beginning and 185.9MB in the end (delta: -86.0MB). Peak memory consumption was 163.0MB. Max. memory is 16.1GB. [2022-11-25 16:43:53,098 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 383.8MB. Free memory is still 185.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:43:53,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.06ms. Allocated memory is still 134.2MB. Free memory was 92.2MB in the beginning and 77.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.80ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 75.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.27ms. Allocated memory is still 134.2MB. Free memory was 75.0MB in the beginning and 73.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.15ms. Allocated memory is still 134.2MB. Free memory was 73.0MB in the beginning and 99.8MB in the end (delta: -26.9MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 52407.05ms. Allocated memory was 134.2MB in the beginning and 383.8MB in the end (delta: 249.6MB). Free memory was 99.8MB in the beginning and 185.9MB in the end (delta: -86.0MB). Peak memory consumption was 163.0MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 383.8MB. Free memory is still 185.9MB. 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 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 15 + -2 * i2 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 52.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 51.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 48 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, 190 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 1108 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 762 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 346 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital343 mio100 ax100 hnf100 lsp443 ukn19 mio100 lsp100 div127 bol100 ite100 ukn100 eq167 hnf96 smp78 dnf11008 smp12 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 16:43:53,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:53,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b984a1b-cf68-4195-903b-12c8a9d2ce3c/bin/uautomizer-ZsLfNo2U6R/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