./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY --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 760447de6aa5739f187553f004f72c898b25c540c6dba08996c9520ae7051de1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:50:22,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:50:22,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:50:22,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:50:22,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:50:22,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:50:22,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:50:22,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:50:22,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:50:22,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:50:22,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:50:22,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:50:22,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:50:22,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:50:22,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:50:22,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:50:22,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:50:22,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:50:22,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:50:22,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:50:22,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:50:22,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:50:22,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:50:22,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:50:22,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:50:22,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:50:22,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:50:22,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:50:22,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:50:22,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:50:22,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:50:22,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:50:22,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:50:22,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:50:22,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:50:22,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:50:22,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:50:22,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:50:22,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:50:22,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:50:22,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:50:22,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 07:50:22,785 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:50:22,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:50:22,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:50:22,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:50:22,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:50:22,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:50:22,787 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:50:22,788 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:50:22,788 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:50:22,788 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:50:22,788 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:50:22,788 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:50:22,789 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:50:22,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:50:22,789 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:50:22,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:50:22,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:50:22,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:50:22,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:50:22,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:50:22,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:50:22,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:50:22,790 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:50:22,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:50:22,791 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:50:22,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:50:22,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:50:22,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:50:22,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:50:22,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:50:22,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:50:22,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:50:22,793 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:50:22,793 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_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760447de6aa5739f187553f004f72c898b25c540c6dba08996c9520ae7051de1 [2021-11-07 07:50:23,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:50:23,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:50:23,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:50:23,083 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:50:23,084 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:50:23,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c [2021-11-07 07:50:23,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/data/01b0d1012/41f06eb788a24134a292dec39fa61655/FLAG83a87ee68 [2021-11-07 07:50:23,632 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:50:23,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c [2021-11-07 07:50:23,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/data/01b0d1012/41f06eb788a24134a292dec39fa61655/FLAG83a87ee68 [2021-11-07 07:50:23,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/data/01b0d1012/41f06eb788a24134a292dec39fa61655 [2021-11-07 07:50:23,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:50:23,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:50:23,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:50:23,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:50:23,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:50:24,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:50:23" (1/1) ... [2021-11-07 07:50:24,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49795996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24, skipping insertion in model container [2021-11-07 07:50:24,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:50:23" (1/1) ... [2021-11-07 07:50:24,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:50:24,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:50:24,407 WARN L228 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_c1d425ab-0161-4d89-a038-23385d358b3a/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c[20047,20060] [2021-11-07 07:50:24,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:50:24,425 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:50:24,498 WARN L228 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_c1d425ab-0161-4d89-a038-23385d358b3a/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.UNBOUNDED.pals.c[20047,20060] [2021-11-07 07:50:24,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:50:24,515 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:50:24,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24 WrapperNode [2021-11-07 07:50:24,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:50:24,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:50:24,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:50:24,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:50:24,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:50:24,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:50:24,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:50:24,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:50:24,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:50:24,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:50:24,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:50:24,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:50:24,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (1/1) ... [2021-11-07 07:50:24,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:50:24,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:50:24,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:50:24,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d425ab-0161-4d89-a038-23385d358b3a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:50:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:50:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:50:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:50:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:50:25,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:50:25,583 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-11-07 07:50:25,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:50:25 BoogieIcfgContainer [2021-11-07 07:50:25,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:50:25,590 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:50:25,590 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:50:25,607 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:50:25,607 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:50:25,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:50:23" (1/3) ... [2021-11-07 07:50:25,609 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4635e183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:50:25, skipping insertion in model container [2021-11-07 07:50:25,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:50:25,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:50:24" (2/3) ... [2021-11-07 07:50:25,610 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4635e183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:50:25, skipping insertion in model container [2021-11-07 07:50:25,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:50:25,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:50:25" (3/3) ... [2021-11-07 07:50:25,611 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c [2021-11-07 07:50:25,668 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:50:25,669 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:50:25,669 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:50:25,669 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:50:25,669 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:50:25,669 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:50:25,669 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:50:25,669 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:50:25,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.7480314960629921) internal successors, (222), 127 states have internal predecessors, (222), 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) [2021-11-07 07:50:25,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-11-07 07:50:25,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:50:25,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:50:25,726 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:25,726 INFO L843 BuchiCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:25,727 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:50:25,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.7480314960629921) internal successors, (222), 127 states have internal predecessors, (222), 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) [2021-11-07 07:50:25,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-11-07 07:50:25,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:50:25,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:50:25,740 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:25,741 INFO L843 BuchiCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:25,748 INFO L791 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 38#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~id3~0 := main_#t~nondet23;havoc main_#t~nondet23;~st3~0 := main_#t~nondet24;havoc main_#t~nondet24;~send3~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode3~0 := main_#t~nondet26;havoc main_#t~nondet26;~id4~0 := main_#t~nondet27;havoc main_#t~nondet27;~st4~0 := main_#t~nondet28;havoc main_#t~nondet28;~send4~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode4~0 := main_#t~nondet30;havoc main_#t~nondet30;~id5~0 := main_#t~nondet31;havoc main_#t~nondet31;~st5~0 := main_#t~nondet32;havoc main_#t~nondet32;~send5~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode5~0 := main_#t~nondet34;havoc main_#t~nondet34;~id6~0 := main_#t~nondet35;havoc main_#t~nondet35;~st6~0 := main_#t~nondet36;havoc main_#t~nondet36;~send6~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode6~0 := main_#t~nondet38;havoc main_#t~nondet38;~id7~0 := main_#t~nondet39;havoc main_#t~nondet39;~st7~0 := main_#t~nondet40;havoc main_#t~nondet40;~send7~0 := main_#t~nondet41;havoc main_#t~nondet41;~mode7~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 120#L263true assume !(0 == ~r1~0 % 256);init_~tmp~0 := 0; 127#L263-1true init_#res := init_~tmp~0; 104#L464true main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 41#L22true assume !(0 == assume_abort_if_not_~cond); 97#L21true ~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;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0 := 0; 46#L578true [2021-11-07 07:50:25,750 INFO L793 eck$LassoCheckResult]: Loop: 46#L578true assume !false;havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 35#L85true assume !(0 != ~mode1~0 % 256); 45#L102true assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite7 := ~send1~0; 44#L102-2true ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 7#L85-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 53#L114true assume !(0 != ~mode2~0 % 256); 116#L127true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 59#L127-2true ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 39#L114-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 27#L139true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 101#L142true assume !(node3_~m3~0 != ~nomsg~0); 71#L142-1true ~mode3~0 := 0; 17#L139-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 81#L164true assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 18#L167true assume !(node4_~m4~0 != ~nomsg~0); 110#L167-1true ~mode4~0 := 0; 57#L164-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 85#L189true assume !(0 != ~mode5~0 % 256); 82#L202true assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 103#L202-2true ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 49#L189-2true havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 119#L214true assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 20#L217true assume !(node6_~m6~0 != ~nomsg~0); 87#L217-1true ~mode6~0 := 0; 14#L214-2true havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 25#L239true assume !(0 != ~mode7~0 % 256); 51#L252true assume ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0;node7_#t~ite13 := ~send7~0; 126#L252-2true ~p7_new~0 := (if node7_#t~ite13 % 256 <= 127 then node7_#t~ite13 % 256 else node7_#t~ite13 % 256 - 256);havoc node7_#t~ite13;~mode7~0 := 1; 47#L239-2true ~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;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 33#L472true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1 := 0; 98#L472-1true check_#res := check_~tmp~1; 112#L492true main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 93#L583true assume !(0 == assert_~arg % 256); 46#L578true [2021-11-07 07:50:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:25,756 INFO L85 PathProgramCache]: Analyzing trace with hash 2087378158, now seen corresponding path program 1 times [2021-11-07 07:50:25,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:25,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186863355] [2021-11-07 07:50:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:25,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:26,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:26,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:50:26,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186863355] [2021-11-07 07:50:26,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186863355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:26,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:26,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:50:26,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751348355] [2021-11-07 07:50:26,031 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:50:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash 971855701, now seen corresponding path program 1 times [2021-11-07 07:50:26,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:26,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499726166] [2021-11-07 07:50:26,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:26,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:26,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:50:26,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499726166] [2021-11-07 07:50:26,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499726166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:26,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:26,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:50:26,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009808018] [2021-11-07 07:50:26,296 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:50:26,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:50:26,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:50:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:50:26,316 INFO L87 Difference]: Start difference. First operand has 128 states, 127 states have (on average 1.7480314960629921) internal successors, (222), 127 states have internal predecessors, (222), 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) [2021-11-07 07:50:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:26,465 INFO L93 Difference]: Finished difference Result 127 states and 217 transitions. [2021-11-07 07:50:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:50:26,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 217 transitions. [2021-11-07 07:50:26,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-11-07 07:50:26,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 123 states and 164 transitions. [2021-11-07 07:50:26,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2021-11-07 07:50:26,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2021-11-07 07:50:26,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 164 transitions. [2021-11-07 07:50:26,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:50:26,483 INFO L681 BuchiCegarLoop]: Abstraction has 123 states and 164 transitions. [2021-11-07 07:50:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 164 transitions. [2021-11-07 07:50:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-07 07:50:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 123 states have (on average 1.3333333333333333) internal successors, (164), 122 states have internal predecessors, (164), 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) [2021-11-07 07:50:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2021-11-07 07:50:26,519 INFO L704 BuchiCegarLoop]: Abstraction has 123 states and 164 transitions. [2021-11-07 07:50:26,520 INFO L587 BuchiCegarLoop]: Abstraction has 123 states and 164 transitions. [2021-11-07 07:50:26,520 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 07:50:26,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 164 transitions. [2021-11-07 07:50:26,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-11-07 07:50:26,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:50:26,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:50:26,526 INFO L842 BuchiCegarLoop]: 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, 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] [2021-11-07 07:50:26,526 INFO L843 BuchiCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:26,527 INFO L791 eck$LassoCheckResult]: Stem: 393#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 332#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~id3~0 := main_#t~nondet23;havoc main_#t~nondet23;~st3~0 := main_#t~nondet24;havoc main_#t~nondet24;~send3~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode3~0 := main_#t~nondet26;havoc main_#t~nondet26;~id4~0 := main_#t~nondet27;havoc main_#t~nondet27;~st4~0 := main_#t~nondet28;havoc main_#t~nondet28;~send4~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode4~0 := main_#t~nondet30;havoc main_#t~nondet30;~id5~0 := main_#t~nondet31;havoc main_#t~nondet31;~st5~0 := main_#t~nondet32;havoc main_#t~nondet32;~send5~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode5~0 := main_#t~nondet34;havoc main_#t~nondet34;~id6~0 := main_#t~nondet35;havoc main_#t~nondet35;~st6~0 := main_#t~nondet36;havoc main_#t~nondet36;~send6~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode6~0 := main_#t~nondet38;havoc main_#t~nondet38;~id7~0 := main_#t~nondet39;havoc main_#t~nondet39;~st7~0 := main_#t~nondet40;havoc main_#t~nondet40;~send7~0 := main_#t~nondet41;havoc main_#t~nondet41;~mode7~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 333#L263 assume 0 == ~r1~0 % 256; 361#L264 assume ~id1~0 >= 0; 362#L265 assume 0 == ~st1~0; 295#L266 assume ~send1~0 == ~id1~0; 296#L267 assume 0 == ~mode1~0 % 256; 301#L268 assume ~id2~0 >= 0; 302#L269 assume 0 == ~st2~0; 289#L270 assume ~send2~0 == ~id2~0; 290#L271 assume 0 == ~mode2~0 % 256; 320#L272 assume ~id3~0 >= 0; 339#L273 assume 0 == ~st3~0; 359#L274 assume ~send3~0 == ~id3~0; 383#L275 assume 0 == ~mode3~0 % 256; 275#L276 assume ~id4~0 >= 0; 276#L277 assume 0 == ~st4~0; 394#L278 assume ~send4~0 == ~id4~0; 352#L279 assume 0 == ~mode4~0 % 256; 353#L280 assume ~id5~0 >= 0; 297#L281 assume 0 == ~st5~0; 277#L282 assume ~send5~0 == ~id5~0; 278#L283 assume 0 == ~mode5~0 % 256; 363#L284 assume ~id6~0 >= 0; 364#L285 assume 0 == ~st6~0; 378#L286 assume ~send6~0 == ~id6~0; 368#L287 assume 0 == ~mode6~0 % 256; 311#L288 assume ~id7~0 >= 0; 312#L289 assume 0 == ~st7~0; 324#L290 assume ~send7~0 == ~id7~0; 374#L291 assume 0 == ~mode7~0 % 256; 375#L292 assume ~id1~0 != ~id2~0; 384#L293 assume ~id1~0 != ~id3~0; 392#L294 assume ~id1~0 != ~id4~0; 284#L295 assume ~id1~0 != ~id5~0; 285#L296 assume ~id1~0 != ~id6~0; 321#L297 assume ~id1~0 != ~id7~0; 317#L298 assume ~id2~0 != ~id3~0; 318#L299 assume ~id2~0 != ~id4~0; 330#L300 assume ~id2~0 != ~id5~0; 369#L301 assume ~id2~0 != ~id6~0; 376#L302 assume ~id2~0 != ~id7~0; 377#L303 assume ~id3~0 != ~id4~0; 388#L304 assume ~id3~0 != ~id5~0; 365#L305 assume ~id3~0 != ~id6~0; 366#L306 assume ~id3~0 != ~id7~0; 372#L307 assume ~id4~0 != ~id5~0; 291#L308 assume ~id4~0 != ~id6~0; 292#L309 assume ~id4~0 != ~id7~0; 370#L310 assume ~id5~0 != ~id6~0; 346#L311 assume ~id5~0 != ~id7~0; 347#L312 assume ~id6~0 != ~id7~0;init_~tmp~0 := 1; 395#L263-1 init_#res := init_~tmp~0; 390#L464 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 337#L22 assume !(0 == assume_abort_if_not_~cond); 338#L21 ~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;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0 := 0; 341#L578 [2021-11-07 07:50:26,527 INFO L793 eck$LassoCheckResult]: Loop: 341#L578 assume !false;havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 328#L85 assume !(0 != ~mode1~0 % 256); 329#L102 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite7 := ~send1~0; 340#L102-2 ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 279#L85-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 280#L114 assume !(0 != ~mode2~0 % 256); 349#L127 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 360#L127-2 ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 334#L114-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 314#L139 assume !(0 != ~mode3~0 % 256); 315#L152 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 319#L152-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 298#L139-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 299#L164 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 300#L167 assume !(node4_~m4~0 != ~nomsg~0); 282#L167-1 ~mode4~0 := 0; 357#L164-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 358#L189 assume !(0 != ~mode5~0 % 256); 379#L202 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 380#L202-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 344#L189-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 345#L214 assume !(0 != ~mode6~0 % 256); 386#L227 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 331#L227-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 293#L214-2 havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 294#L239 assume 0 != ~mode7~0 % 256;node7_~m7~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 309#L242 assume !(node7_~m7~0 != ~nomsg~0); 343#L242-1 ~mode7~0 := 0; 342#L239-2 ~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;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 322#L472 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1);check_~tmp~1 := 0; 307#L472-1 check_#res := check_~tmp~1; 387#L492 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 385#L583 assume !(0 == assert_~arg % 256); 341#L578 [2021-11-07 07:50:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 1 times [2021-11-07 07:50:26,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:26,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085939246] [2021-11-07 07:50:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:26,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:26,586 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:50:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:26,736 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:50:26,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:26,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1335053343, now seen corresponding path program 1 times [2021-11-07 07:50:26,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:26,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213879420] [2021-11-07 07:50:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:26,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:26,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:26,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:50:26,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213879420] [2021-11-07 07:50:26,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213879420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:26,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:26,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:50:26,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656408322] [2021-11-07 07:50:26,870 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:50:26,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:50:26,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:50:26,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:50:26,900 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. cyclomatic complexity: 42 Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-11-07 07:50:26,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:26,968 INFO L93 Difference]: Finished difference Result 126 states and 166 transitions. [2021-11-07 07:50:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:50:26,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 166 transitions. [2021-11-07 07:50:26,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-11-07 07:50:26,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 123 states and 161 transitions. [2021-11-07 07:50:26,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2021-11-07 07:50:26,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2021-11-07 07:50:26,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 161 transitions. [2021-11-07 07:50:26,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:50:26,983 INFO L681 BuchiCegarLoop]: Abstraction has 123 states and 161 transitions. [2021-11-07 07:50:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 161 transitions. [2021-11-07 07:50:26,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-07 07:50:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 122 states have internal predecessors, (161), 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) [2021-11-07 07:50:27,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 161 transitions. [2021-11-07 07:50:27,003 INFO L704 BuchiCegarLoop]: Abstraction has 123 states and 161 transitions. [2021-11-07 07:50:27,003 INFO L587 BuchiCegarLoop]: Abstraction has 123 states and 161 transitions. [2021-11-07 07:50:27,004 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 07:50:27,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 161 transitions. [2021-11-07 07:50:27,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2021-11-07 07:50:27,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:50:27,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:50:27,010 INFO L842 BuchiCegarLoop]: 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, 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] [2021-11-07 07:50:27,012 INFO L843 BuchiCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:27,013 INFO L791 eck$LassoCheckResult]: Stem: 654#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 593#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~id3~0 := main_#t~nondet23;havoc main_#t~nondet23;~st3~0 := main_#t~nondet24;havoc main_#t~nondet24;~send3~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode3~0 := main_#t~nondet26;havoc main_#t~nondet26;~id4~0 := main_#t~nondet27;havoc main_#t~nondet27;~st4~0 := main_#t~nondet28;havoc main_#t~nondet28;~send4~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode4~0 := main_#t~nondet30;havoc main_#t~nondet30;~id5~0 := main_#t~nondet31;havoc main_#t~nondet31;~st5~0 := main_#t~nondet32;havoc main_#t~nondet32;~send5~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode5~0 := main_#t~nondet34;havoc main_#t~nondet34;~id6~0 := main_#t~nondet35;havoc main_#t~nondet35;~st6~0 := main_#t~nondet36;havoc main_#t~nondet36;~send6~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode6~0 := main_#t~nondet38;havoc main_#t~nondet38;~id7~0 := main_#t~nondet39;havoc main_#t~nondet39;~st7~0 := main_#t~nondet40;havoc main_#t~nondet40;~send7~0 := main_#t~nondet41;havoc main_#t~nondet41;~mode7~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 594#L263 assume 0 == ~r1~0 % 256; 622#L264 assume ~id1~0 >= 0; 623#L265 assume 0 == ~st1~0; 556#L266 assume ~send1~0 == ~id1~0; 557#L267 assume 0 == ~mode1~0 % 256; 562#L268 assume ~id2~0 >= 0; 563#L269 assume 0 == ~st2~0; 550#L270 assume ~send2~0 == ~id2~0; 551#L271 assume 0 == ~mode2~0 % 256; 581#L272 assume ~id3~0 >= 0; 600#L273 assume 0 == ~st3~0; 620#L274 assume ~send3~0 == ~id3~0; 644#L275 assume 0 == ~mode3~0 % 256; 536#L276 assume ~id4~0 >= 0; 537#L277 assume 0 == ~st4~0; 655#L278 assume ~send4~0 == ~id4~0; 613#L279 assume 0 == ~mode4~0 % 256; 614#L280 assume ~id5~0 >= 0; 558#L281 assume 0 == ~st5~0; 538#L282 assume ~send5~0 == ~id5~0; 539#L283 assume 0 == ~mode5~0 % 256; 624#L284 assume ~id6~0 >= 0; 625#L285 assume 0 == ~st6~0; 639#L286 assume ~send6~0 == ~id6~0; 629#L287 assume 0 == ~mode6~0 % 256; 570#L288 assume ~id7~0 >= 0; 571#L289 assume 0 == ~st7~0; 585#L290 assume ~send7~0 == ~id7~0; 635#L291 assume 0 == ~mode7~0 % 256; 636#L292 assume ~id1~0 != ~id2~0; 645#L293 assume ~id1~0 != ~id3~0; 653#L294 assume ~id1~0 != ~id4~0; 545#L295 assume ~id1~0 != ~id5~0; 546#L296 assume ~id1~0 != ~id6~0; 582#L297 assume ~id1~0 != ~id7~0; 578#L298 assume ~id2~0 != ~id3~0; 579#L299 assume ~id2~0 != ~id4~0; 591#L300 assume ~id2~0 != ~id5~0; 630#L301 assume ~id2~0 != ~id6~0; 637#L302 assume ~id2~0 != ~id7~0; 638#L303 assume ~id3~0 != ~id4~0; 649#L304 assume ~id3~0 != ~id5~0; 626#L305 assume ~id3~0 != ~id6~0; 627#L306 assume ~id3~0 != ~id7~0; 633#L307 assume ~id4~0 != ~id5~0; 552#L308 assume ~id4~0 != ~id6~0; 553#L309 assume ~id4~0 != ~id7~0; 631#L310 assume ~id5~0 != ~id6~0; 607#L311 assume ~id5~0 != ~id7~0; 608#L312 assume ~id6~0 != ~id7~0;init_~tmp~0 := 1; 656#L263-1 init_#res := init_~tmp~0; 651#L464 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 598#L22 assume !(0 == assume_abort_if_not_~cond); 599#L21 ~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;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0 := 0; 602#L578 [2021-11-07 07:50:27,013 INFO L793 eck$LassoCheckResult]: Loop: 602#L578 assume !false;havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 589#L85 assume !(0 != ~mode1~0 % 256); 590#L102 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite7 := ~send1~0; 601#L102-2 ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 540#L85-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 541#L114 assume !(0 != ~mode2~0 % 256); 610#L127 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 621#L127-2 ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 595#L114-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 575#L139 assume !(0 != ~mode3~0 % 256); 576#L152 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 580#L152-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 559#L139-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 560#L164 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 561#L167 assume !(node4_~m4~0 != ~nomsg~0); 543#L167-1 ~mode4~0 := 0; 618#L164-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 619#L189 assume !(0 != ~mode5~0 % 256); 640#L202 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 641#L202-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 605#L189-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 606#L214 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 564#L217 assume !(node6_~m6~0 != ~nomsg~0); 565#L217-1 ~mode6~0 := 0; 554#L214-2 havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 555#L239 assume 0 != ~mode7~0 % 256;node7_~m7~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 572#L242 assume !(node7_~m7~0 != ~nomsg~0); 604#L242-1 ~mode7~0 := 0; 603#L239-2 ~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;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 583#L472 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 584#L473 assume ~r1~0 % 256 >= 7; 574#L477 assume ~r1~0 % 256 < 7;check_~tmp~1 := 1; 568#L472-1 check_#res := check_~tmp~1; 648#L492 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 646#L583 assume !(0 == assert_~arg % 256); 602#L578 [2021-11-07 07:50:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:27,015 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 2 times [2021-11-07 07:50:27,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:27,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642022430] [2021-11-07 07:50:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:27,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:27,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:50:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:27,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:50:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash 465966149, now seen corresponding path program 1 times [2021-11-07 07:50:27,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:27,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992833773] [2021-11-07 07:50:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:27,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:27,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:50:27,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992833773] [2021-11-07 07:50:27,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992833773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:27,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:27,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:50:27,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485887490] [2021-11-07 07:50:27,230 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:50:27,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:50:27,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:50:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:50:27,232 INFO L87 Difference]: Start difference. First operand 123 states and 161 transitions. cyclomatic complexity: 39 Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-07 07:50:27,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:27,282 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2021-11-07 07:50:27,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:50:27,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2021-11-07 07:50:27,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 128 [2021-11-07 07:50:27,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2021-11-07 07:50:27,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2021-11-07 07:50:27,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2021-11-07 07:50:27,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2021-11-07 07:50:27,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:50:27,290 INFO L681 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2021-11-07 07:50:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2021-11-07 07:50:27,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2021-11-07 07:50:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.3846153846153846) internal successors, (252), 181 states have internal predecessors, (252), 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) [2021-11-07 07:50:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 252 transitions. [2021-11-07 07:50:27,299 INFO L704 BuchiCegarLoop]: Abstraction has 182 states and 252 transitions. [2021-11-07 07:50:27,299 INFO L587 BuchiCegarLoop]: Abstraction has 182 states and 252 transitions. [2021-11-07 07:50:27,299 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 07:50:27,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 252 transitions. [2021-11-07 07:50:27,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 126 [2021-11-07 07:50:27,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:50:27,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:50:27,303 INFO L842 BuchiCegarLoop]: 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, 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] [2021-11-07 07:50:27,303 INFO L843 BuchiCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:27,304 INFO L791 eck$LassoCheckResult]: Stem: 970#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(32);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0; 907#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~ret43, main_#t~ret44, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~id3~0 := main_#t~nondet23;havoc main_#t~nondet23;~st3~0 := main_#t~nondet24;havoc main_#t~nondet24;~send3~0 := main_#t~nondet25;havoc main_#t~nondet25;~mode3~0 := main_#t~nondet26;havoc main_#t~nondet26;~id4~0 := main_#t~nondet27;havoc main_#t~nondet27;~st4~0 := main_#t~nondet28;havoc main_#t~nondet28;~send4~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode4~0 := main_#t~nondet30;havoc main_#t~nondet30;~id5~0 := main_#t~nondet31;havoc main_#t~nondet31;~st5~0 := main_#t~nondet32;havoc main_#t~nondet32;~send5~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode5~0 := main_#t~nondet34;havoc main_#t~nondet34;~id6~0 := main_#t~nondet35;havoc main_#t~nondet35;~st6~0 := main_#t~nondet36;havoc main_#t~nondet36;~send6~0 := main_#t~nondet37;havoc main_#t~nondet37;~mode6~0 := main_#t~nondet38;havoc main_#t~nondet38;~id7~0 := main_#t~nondet39;havoc main_#t~nondet39;~st7~0 := main_#t~nondet40;havoc main_#t~nondet40;~send7~0 := main_#t~nondet41;havoc main_#t~nondet41;~mode7~0 := main_#t~nondet42;havoc main_#t~nondet42;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 908#L263 assume 0 == ~r1~0 % 256; 937#L264 assume ~id1~0 >= 0; 938#L265 assume 0 == ~st1~0; 869#L266 assume ~send1~0 == ~id1~0; 870#L267 assume 0 == ~mode1~0 % 256; 878#L268 assume ~id2~0 >= 0; 879#L269 assume 0 == ~st2~0; 863#L270 assume ~send2~0 == ~id2~0; 864#L271 assume 0 == ~mode2~0 % 256; 894#L272 assume ~id3~0 >= 0; 914#L273 assume 0 == ~st3~0; 935#L274 assume ~send3~0 == ~id3~0; 959#L275 assume 0 == ~mode3~0 % 256; 849#L276 assume ~id4~0 >= 0; 850#L277 assume 0 == ~st4~0; 971#L278 assume ~send4~0 == ~id4~0; 928#L279 assume 0 == ~mode4~0 % 256; 929#L280 assume ~id5~0 >= 0; 871#L281 assume 0 == ~st5~0; 851#L282 assume ~send5~0 == ~id5~0; 852#L283 assume 0 == ~mode5~0 % 256; 939#L284 assume ~id6~0 >= 0; 940#L285 assume 0 == ~st6~0; 954#L286 assume ~send6~0 == ~id6~0; 944#L287 assume 0 == ~mode6~0 % 256; 885#L288 assume ~id7~0 >= 0; 886#L289 assume 0 == ~st7~0; 898#L290 assume ~send7~0 == ~id7~0; 950#L291 assume 0 == ~mode7~0 % 256; 951#L292 assume ~id1~0 != ~id2~0; 960#L293 assume ~id1~0 != ~id3~0; 969#L294 assume ~id1~0 != ~id4~0; 858#L295 assume ~id1~0 != ~id5~0; 859#L296 assume ~id1~0 != ~id6~0; 895#L297 assume ~id1~0 != ~id7~0; 891#L298 assume ~id2~0 != ~id3~0; 892#L299 assume ~id2~0 != ~id4~0; 904#L300 assume ~id2~0 != ~id5~0; 945#L301 assume ~id2~0 != ~id6~0; 952#L302 assume ~id2~0 != ~id7~0; 953#L303 assume ~id3~0 != ~id4~0; 965#L304 assume ~id3~0 != ~id5~0; 941#L305 assume ~id3~0 != ~id6~0; 942#L306 assume ~id3~0 != ~id7~0; 948#L307 assume ~id4~0 != ~id5~0; 865#L308 assume ~id4~0 != ~id6~0; 866#L309 assume ~id4~0 != ~id7~0; 946#L310 assume ~id5~0 != ~id6~0; 922#L311 assume ~id5~0 != ~id7~0; 923#L312 assume ~id6~0 != ~id7~0;init_~tmp~0 := 1; 972#L263-1 init_#res := init_~tmp~0; 967#L464 main_#t~ret43 := init_#res;main_~i2~0 := main_#t~ret43;havoc main_#t~ret43;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 912#L22 assume !(0 == assume_abort_if_not_~cond); 913#L21 ~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;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;main_~i2~0 := 0; 916#L578 [2021-11-07 07:50:27,304 INFO L793 eck$LassoCheckResult]: Loop: 916#L578 assume !false;havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 902#L85 assume !(0 != ~mode1~0 % 256); 903#L102 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite7 := ~send1~0; 915#L102-2 ~p1_new~0 := (if node1_#t~ite7 % 256 <= 127 then node1_#t~ite7 % 256 else node1_#t~ite7 % 256 - 256);havoc node1_#t~ite7;~mode1~0 := 1; 853#L85-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 854#L114 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 860#L117 assume !(node2_~m2~0 != ~nomsg~0); 861#L117-1 ~mode2~0 := 0; 906#L114-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 888#L139 assume !(0 != ~mode3~0 % 256); 889#L152 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 893#L152-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 872#L139-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 873#L164 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 874#L167 assume !(node4_~m4~0 != ~nomsg~0); 856#L167-1 ~mode4~0 := 0; 933#L164-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 934#L189 assume !(0 != ~mode5~0 % 256); 955#L202 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 956#L202-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 920#L189-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 921#L214 assume !(0 != ~mode6~0 % 256); 962#L227 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 905#L227-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 867#L214-2 havoc node7_#t~ite13, node7_~m7~0;havoc node7_~m7~0;node7_~m7~0 := ~nomsg~0; 868#L239 assume 0 != ~mode7~0 % 256;node7_~m7~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 883#L242 assume !(node7_~m7~0 != ~nomsg~0); 918#L242-1 ~mode7~0 := 0; 919#L239-2 ~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;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 974#L472 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 <= 1; 973#L473 assume !(~r1~0 % 256 >= 7); 910#L476 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0; 911#L477 assume ~r1~0 % 256 < 7;check_~tmp~1 := 1; 963#L472-1 check_#res := check_~tmp~1; 964#L492 main_#t~ret44 := check_#res;main_~c1~0 := main_#t~ret44;havoc main_#t~ret44;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 961#L583 assume !(0 == assert_~arg % 256); 916#L578 [2021-11-07 07:50:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 292839954, now seen corresponding path program 3 times [2021-11-07 07:50:27,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:27,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169420457] [2021-11-07 07:50:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:27,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:27,338 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:50:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:27,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:50:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:27,405 INFO L85 PathProgramCache]: Analyzing trace with hash -633365505, now seen corresponding path program 1 times [2021-11-07 07:50:27,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:27,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585204343] [2021-11-07 07:50:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:27,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:27,429 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:50:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:50:27,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:50:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash -825226864, now seen corresponding path program 1 times [2021-11-07 07:50:27,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:50:27,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671795741] [2021-11-07 07:50:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:27,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:50:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:27,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:50:27,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671795741] [2021-11-07 07:50:27,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671795741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:27,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:27,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:50:27,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825485741] [2021-11-07 07:50:29,618 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:50:29,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:50:29,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:50:29,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:50:29,619 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:50:29,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:50:29,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:50:29,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:50:29,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.7.ufo.UNBOUNDED.pals.c_Iteration4_Loop [2021-11-07 07:50:29,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:50:29,620 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:50:29,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:29,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:29,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:29,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:50:30,827 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 12