./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro --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 2c3b1a53bc376cbb6283db57f6430d0a17b3acc99aa70ab198c7c36e6e59ecc9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:52:53,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:52:53,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:52:53,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:52:53,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:52:53,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:52:53,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:52:53,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:52:53,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:52:53,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:52:53,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:52:53,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:52:53,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:52:53,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:52:53,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:52:53,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:52:53,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:52:53,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:52:53,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:52:53,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:52:53,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:52:53,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:52:53,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:52:53,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:52:53,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:52:53,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:52:53,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:52:53,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:52:53,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:52:53,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:52:53,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:52:53,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:52:53,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:52:53,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:52:53,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:52:53,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:52:53,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:52:53,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:52:53,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:52:53,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:52:53,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:52:53,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:52:53,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:52:53,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:52:53,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:52:53,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:52:53,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:52:53,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:52:53,942 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:52:53,942 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:52:53,942 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:52:53,943 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:52:53,944 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:52:53,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:52:53,944 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:52:53,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:52:53,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:52:53,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:52:53,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:52:53,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:52:53,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:52:53,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:52:53,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:52:53,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:52:53,946 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:52:53,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:52:53,948 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:52:53,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:52:53,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:52:53,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:52:53,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:52:53,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:52:53,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:52:53,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:52:53,951 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_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c3b1a53bc376cbb6283db57f6430d0a17b3acc99aa70ab198c7c36e6e59ecc9 [2022-11-18 19:52:54,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:52:54,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:52:54,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:52:54,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:52:54,329 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:52:54,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2022-11-18 19:52:54,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/data/c9c037e56/ba6c85e8204948eaade0be17fad7d991/FLAG8dc251b92 [2022-11-18 19:52:54,966 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:52:54,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2022-11-18 19:52:54,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/data/c9c037e56/ba6c85e8204948eaade0be17fad7d991/FLAG8dc251b92 [2022-11-18 19:52:55,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/data/c9c037e56/ba6c85e8204948eaade0be17fad7d991 [2022-11-18 19:52:55,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:52:55,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:52:55,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:55,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:52:55,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:52:55,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194fa384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55, skipping insertion in model container [2022-11-18 19:52:55,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:52:55,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:52:55,703 WARN L234 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_66efbf34-b1a6-42a7-803d-d878aa5abc94/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c[11270,11283] [2022-11-18 19:52:55,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:55,722 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:52:55,795 WARN L234 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_66efbf34-b1a6-42a7-803d-d878aa5abc94/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c[11270,11283] [2022-11-18 19:52:55,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:55,812 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:52:55,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55 WrapperNode [2022-11-18 19:52:55,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:55,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:55,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:52:55,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:52:55,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,859 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 296 [2022-11-18 19:52:55,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:55,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:52:55,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:52:55,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:52:55,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:52:55,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:52:55,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:52:55,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:52:55,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (1/1) ... [2022-11-18 19:52:55,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:52:55,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:52:55,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:52:56,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66efbf34-b1a6-42a7-803d-d878aa5abc94/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:52:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:52:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:52:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:52:56,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:52:56,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:52:56,177 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:52:56,756 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:52:56,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:52:56,764 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:52:56,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:56 BoogieIcfgContainer [2022-11-18 19:52:56,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:52:56,768 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:52:56,768 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:52:56,788 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:52:56,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:52:56,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:52:55" (1/3) ... [2022-11-18 19:52:56,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d1ac2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:52:56, skipping insertion in model container [2022-11-18 19:52:56,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:52:56,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:55" (2/3) ... [2022-11-18 19:52:56,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d1ac2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:52:56, skipping insertion in model container [2022-11-18 19:52:56,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:52:56,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:56" (3/3) ... [2022-11-18 19:52:56,793 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2022-11-18 19:52:56,893 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:52:56,893 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:52:56,893 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:52:56,893 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:52:56,907 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:52:56,907 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:52:56,907 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:52:56,907 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:52:56,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.7407407407407407) internal successors, (141), 81 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:56,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2022-11-18 19:52:56,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:56,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:56,989 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:56,989 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:56,989 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:52:56,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 82 states, 81 states have (on average 1.7407407407407407) internal successors, (141), 81 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:57,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2022-11-18 19:52:57,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:57,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:57,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:57,012 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:57,026 INFO L748 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(35, 2);call #Ultimate.allocInit(12, 3);~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p5~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p1_old~0 := 0;~p5_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~st2~0 := 0;~st1~0 := 0;~p3_old~0 := 0;~st4~0 := 0;~st3~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~id4~0 := 0;~id3~0 := 0;~id5~0 := 0;~p3_new~0 := 0;~r1~0 := 0; 49#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 5#L198true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 29#L198-1true init_#res#1 := init_~tmp~0#1; 4#L323true main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 54#L22true assume !(0 == assume_abort_if_not_~cond#1); 37#L21true assume { :end_inline_assume_abort_if_not } true;~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;main_~i2~0#1 := 0; 16#L395-2true [2022-11-18 19:52:57,027 INFO L750 eck$LassoCheckResult]: Loop: 16#L395-2true assume !!(main_~i2~0#1 < 10);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 7#L71true assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 72#L71-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 52#L99true assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 57#L99-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 18#L124true assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 76#L124-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 30#L149true assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 62#L149-2true assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 74#L174true assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 56#L174-2true assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 13#L331true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1#1 := 0; 34#L331-1true check_#res#1 := check_~tmp~1#1; 3#L351true main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 46#L425true assume !(0 == assert_~arg#1 % 256); 44#L420true assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 16#L395-2true [2022-11-18 19:52:57,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:57,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1978587388, now seen corresponding path program 1 times [2022-11-18 19:52:57,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:57,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997468681] [2022-11-18 19:52:57,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:57,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:57,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:57,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997468681] [2022-11-18 19:52:57,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997468681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:57,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:57,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:57,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482458715] [2022-11-18 19:52:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:57,455 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:52:57,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:57,458 INFO L85 PathProgramCache]: Analyzing trace with hash 908352820, now seen corresponding path program 1 times [2022-11-18 19:52:57,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:57,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561058745] [2022-11-18 19:52:57,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:57,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:58,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:58,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561058745] [2022-11-18 19:52:58,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561058745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:58,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:58,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:58,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849264292] [2022-11-18 19:52:58,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:58,031 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:52:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:52:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:58,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:58,076 INFO L87 Difference]: Start difference. First operand has 82 states, 81 states have (on average 1.7407407407407407) internal successors, (141), 81 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:58,233 INFO L93 Difference]: Finished difference Result 85 states and 140 transitions. [2022-11-18 19:52:58,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 140 transitions. [2022-11-18 19:52:58,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-11-18 19:52:58,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 77 states and 102 transitions. [2022-11-18 19:52:58,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2022-11-18 19:52:58,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-18 19:52:58,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 102 transitions. [2022-11-18 19:52:58,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:52:58,255 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 102 transitions. [2022-11-18 19:52:58,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 102 transitions. [2022-11-18 19:52:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-18 19:52:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 76 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2022-11-18 19:52:58,290 INFO L240 hiAutomatonCegarLoop]: Abstraction has 77 states and 102 transitions. [2022-11-18 19:52:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:58,295 INFO L428 stractBuchiCegarLoop]: Abstraction has 77 states and 102 transitions. [2022-11-18 19:52:58,295 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:52:58,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 102 transitions. [2022-11-18 19:52:58,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-11-18 19:52:58,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:58,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:58,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,300 INFO L748 eck$LassoCheckResult]: Stem: 254#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(35, 2);call #Ultimate.allocInit(12, 3);~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p5~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p1_old~0 := 0;~p5_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~st2~0 := 0;~st1~0 := 0;~p3_old~0 := 0;~st4~0 := 0;~st3~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~id4~0 := 0;~id3~0 := 0;~id5~0 := 0;~p3_new~0 := 0;~r1~0 := 0; 245#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 189#L198 assume 0 == ~r1~0; 190#L199 assume ~id1~0 >= 0; 240#L200 assume 0 == ~st1~0; 241#L201 assume ~send1~0 == ~id1~0; 222#L202 assume 0 == ~mode1~0 % 256; 223#L203 assume ~id2~0 >= 0; 236#L204 assume 0 == ~st2~0; 201#L205 assume ~send2~0 == ~id2~0; 202#L206 assume 0 == ~mode2~0 % 256; 191#L207 assume ~id3~0 >= 0; 192#L208 assume 0 == ~st3~0; 244#L209 assume ~send3~0 == ~id3~0; 203#L210 assume 0 == ~mode3~0 % 256; 204#L211 assume ~id4~0 >= 0; 196#L212 assume 0 == ~st4~0; 197#L213 assume ~send4~0 == ~id4~0; 258#L214 assume 0 == ~mode4~0 % 256; 259#L215 assume ~id5~0 >= 0; 243#L216 assume 0 == ~st5~0; 229#L217 assume ~send5~0 == ~id5~0; 230#L218 assume 0 == ~mode5~0 % 256; 246#L219 assume ~id1~0 != ~id2~0; 261#L220 assume ~id1~0 != ~id3~0; 221#L221 assume ~id1~0 != ~id4~0; 219#L222 assume ~id1~0 != ~id5~0; 220#L223 assume ~id2~0 != ~id3~0; 214#L224 assume ~id2~0 != ~id4~0; 215#L225 assume ~id2~0 != ~id5~0; 209#L226 assume ~id3~0 != ~id4~0; 210#L227 assume ~id3~0 != ~id5~0; 224#L228 assume ~id4~0 != ~id5~0;init_~tmp~0#1 := 1; 225#L198-1 init_#res#1 := init_~tmp~0#1; 187#L323 main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 188#L22 assume !(0 == assume_abort_if_not_~cond#1); 238#L21 assume { :end_inline_assume_abort_if_not } true;~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;main_~i2~0#1 := 0; 213#L395-2 [2022-11-18 19:52:58,300 INFO L750 eck$LassoCheckResult]: Loop: 213#L395-2 assume !!(main_~i2~0#1 < 10);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 193#L71 assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 195#L71-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 247#L99 assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 228#L99-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 216#L124 assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 218#L124-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 232#L149 assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 205#L149-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 253#L174 assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 250#L174-2 assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 206#L331 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1#1 := 0; 208#L331-1 check_#res#1 := check_~tmp~1#1; 185#L351 main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 186#L425 assume !(0 == assert_~arg#1 % 256); 242#L420 assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 213#L395-2 [2022-11-18 19:52:58,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:58,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 1 times [2022-11-18 19:52:58,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:58,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744661400] [2022-11-18 19:52:58,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:58,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:58,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:58,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash 908352820, now seen corresponding path program 2 times [2022-11-18 19:52:58,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:58,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597158353] [2022-11-18 19:52:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:58,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:58,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597158353] [2022-11-18 19:52:58,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597158353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:58,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:58,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:58,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225168136] [2022-11-18 19:52:58,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:58,650 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:52:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:52:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:58,652 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. cyclomatic complexity: 26 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:58,725 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2022-11-18 19:52:58,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 104 transitions. [2022-11-18 19:52:58,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-11-18 19:52:58,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 77 states and 99 transitions. [2022-11-18 19:52:58,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2022-11-18 19:52:58,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-18 19:52:58,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 99 transitions. [2022-11-18 19:52:58,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:52:58,743 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-11-18 19:52:58,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 99 transitions. [2022-11-18 19:52:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-18 19:52:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.2857142857142858) internal successors, (99), 76 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-11-18 19:52:58,749 INFO L240 hiAutomatonCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-11-18 19:52:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:58,751 INFO L428 stractBuchiCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-11-18 19:52:58,751 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:52:58,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 99 transitions. [2022-11-18 19:52:58,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-11-18 19:52:58,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:58,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:58,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,755 INFO L748 eck$LassoCheckResult]: Stem: 423#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(35, 2);call #Ultimate.allocInit(12, 3);~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p5~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p1_old~0 := 0;~p5_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~st2~0 := 0;~st1~0 := 0;~p3_old~0 := 0;~st4~0 := 0;~st3~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~id4~0 := 0;~id3~0 := 0;~id5~0 := 0;~p3_new~0 := 0;~r1~0 := 0; 414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 358#L198 assume 0 == ~r1~0; 359#L199 assume ~id1~0 >= 0; 409#L200 assume 0 == ~st1~0; 410#L201 assume ~send1~0 == ~id1~0; 391#L202 assume 0 == ~mode1~0 % 256; 392#L203 assume ~id2~0 >= 0; 403#L204 assume 0 == ~st2~0; 367#L205 assume ~send2~0 == ~id2~0; 368#L206 assume 0 == ~mode2~0 % 256; 360#L207 assume ~id3~0 >= 0; 361#L208 assume 0 == ~st3~0; 413#L209 assume ~send3~0 == ~id3~0; 372#L210 assume 0 == ~mode3~0 % 256; 373#L211 assume ~id4~0 >= 0; 362#L212 assume 0 == ~st4~0; 363#L213 assume ~send4~0 == ~id4~0; 427#L214 assume 0 == ~mode4~0 % 256; 428#L215 assume ~id5~0 >= 0; 412#L216 assume 0 == ~st5~0; 396#L217 assume ~send5~0 == ~id5~0; 397#L218 assume 0 == ~mode5~0 % 256; 415#L219 assume ~id1~0 != ~id2~0; 430#L220 assume ~id1~0 != ~id3~0; 390#L221 assume ~id1~0 != ~id4~0; 388#L222 assume ~id1~0 != ~id5~0; 389#L223 assume ~id2~0 != ~id3~0; 383#L224 assume ~id2~0 != ~id4~0; 384#L225 assume ~id2~0 != ~id5~0; 377#L226 assume ~id3~0 != ~id4~0; 378#L227 assume ~id3~0 != ~id5~0; 393#L228 assume ~id4~0 != ~id5~0;init_~tmp~0#1 := 1; 394#L198-1 init_#res#1 := init_~tmp~0#1; 356#L323 main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 357#L22 assume !(0 == assume_abort_if_not_~cond#1); 407#L21 assume { :end_inline_assume_abort_if_not } true;~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;main_~i2~0#1 := 0; 382#L395-2 [2022-11-18 19:52:58,755 INFO L750 eck$LassoCheckResult]: Loop: 382#L395-2 assume !!(main_~i2~0#1 < 10);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 364#L71 assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 366#L71-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 416#L99 assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 399#L99-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 385#L124 assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 387#L124-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 401#L149 assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 374#L149-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 422#L174 assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 419#L174-2 assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 375#L331 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1; 376#L332 assume ~r1~0 >= 5; 379#L336 assume ~r1~0 < 5;check_~tmp~1#1 := 1; 380#L331-1 check_#res#1 := check_~tmp~1#1; 354#L351 main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 355#L425 assume !(0 == assert_~arg#1 % 256); 411#L420 assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 382#L395-2 [2022-11-18 19:52:58,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:58,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 2 times [2022-11-18 19:52:58,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:58,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928017624] [2022-11-18 19:52:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:58,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:58,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:58,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:58,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:58,827 INFO L85 PathProgramCache]: Analyzing trace with hash -367120828, now seen corresponding path program 1 times [2022-11-18 19:52:58,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:58,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619844687] [2022-11-18 19:52:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:58,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:58,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:58,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619844687] [2022-11-18 19:52:58,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619844687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:58,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:58,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:52:58,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135197716] [2022-11-18 19:52:58,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:58,864 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:52:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:52:58,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:52:58,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:52:58,868 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:58,918 INFO L93 Difference]: Finished difference Result 111 states and 150 transitions. [2022-11-18 19:52:58,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 150 transitions. [2022-11-18 19:52:58,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2022-11-18 19:52:58,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 111 states and 150 transitions. [2022-11-18 19:52:58,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2022-11-18 19:52:58,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2022-11-18 19:52:58,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 150 transitions. [2022-11-18 19:52:58,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:52:58,924 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 150 transitions. [2022-11-18 19:52:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 150 transitions. [2022-11-18 19:52:58,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-11-18 19:52:58,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 110 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 150 transitions. [2022-11-18 19:52:58,934 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 150 transitions. [2022-11-18 19:52:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:52:58,938 INFO L428 stractBuchiCegarLoop]: Abstraction has 111 states and 150 transitions. [2022-11-18 19:52:58,939 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:52:58,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 150 transitions. [2022-11-18 19:52:58,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2022-11-18 19:52:58,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:58,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:58,945 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,947 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,948 INFO L748 eck$LassoCheckResult]: Stem: 620#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(35, 2);call #Ultimate.allocInit(12, 3);~p1~0 := 0;~mode5~0 := 0;~p2~0 := 0;~mode4~0 := 0;~p3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p5~0 := 0;~p4_new~0 := 0;~p5_new~0 := 0;~p1_old~0 := 0;~p5_old~0 := 0;~p1_new~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~p2_old~0 := 0;~send4~0 := 0;~send5~0 := 0;~send1~0 := 0;~send2~0 := 0;~p2_new~0 := 0;~send3~0 := 0;~st2~0 := 0;~st1~0 := 0;~p3_old~0 := 0;~st4~0 := 0;~st3~0 := 0;~st5~0 := 0;~id2~0 := 0;~id1~0 := 0;~id4~0 := 0;~id3~0 := 0;~id5~0 := 0;~p3_new~0 := 0;~r1~0 := 0; 611#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~ret25#1, main_#t~ret26#1, main_#t~post27#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~mode1~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~mode2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id4~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st4~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send4~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id5~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st5~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send5~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode5~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 552#L198 assume 0 == ~r1~0; 553#L199 assume ~id1~0 >= 0; 606#L200 assume 0 == ~st1~0; 607#L201 assume ~send1~0 == ~id1~0; 584#L202 assume 0 == ~mode1~0 % 256; 585#L203 assume ~id2~0 >= 0; 600#L204 assume 0 == ~st2~0; 564#L205 assume ~send2~0 == ~id2~0; 565#L206 assume 0 == ~mode2~0 % 256; 554#L207 assume ~id3~0 >= 0; 555#L208 assume 0 == ~st3~0; 610#L209 assume ~send3~0 == ~id3~0; 566#L210 assume 0 == ~mode3~0 % 256; 567#L211 assume ~id4~0 >= 0; 559#L212 assume 0 == ~st4~0; 560#L213 assume ~send4~0 == ~id4~0; 624#L214 assume 0 == ~mode4~0 % 256; 625#L215 assume ~id5~0 >= 0; 609#L216 assume 0 == ~st5~0; 591#L217 assume ~send5~0 == ~id5~0; 592#L218 assume 0 == ~mode5~0 % 256; 612#L219 assume ~id1~0 != ~id2~0; 627#L220 assume ~id1~0 != ~id3~0; 583#L221 assume ~id1~0 != ~id4~0; 581#L222 assume ~id1~0 != ~id5~0; 582#L223 assume ~id2~0 != ~id3~0; 576#L224 assume ~id2~0 != ~id4~0; 577#L225 assume ~id2~0 != ~id5~0; 571#L226 assume ~id3~0 != ~id4~0; 572#L227 assume ~id3~0 != ~id5~0; 586#L228 assume ~id4~0 != ~id5~0;init_~tmp~0#1 := 1; 587#L198-1 init_#res#1 := init_~tmp~0#1; 550#L323 main_#t~ret25#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret25#1;havoc main_#t~ret25#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 551#L22 assume !(0 == assume_abort_if_not_~cond#1); 604#L21 assume { :end_inline_assume_abort_if_not } true;~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;main_~i2~0#1 := 0; 605#L395-2 [2022-11-18 19:52:58,948 INFO L750 eck$LassoCheckResult]: Loop: 605#L395-2 assume !!(main_~i2~0#1 < 10);assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 654#L71 assume !(0 != ~mode1~0 % 256);~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);~mode1~0 := 1; 602#L71-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 649#L99 assume !(0 != ~mode2~0 % 256);~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);~mode2~0 := 1; 646#L99-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 644#L124 assume !(0 != ~mode3~0 % 256);~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);~mode3~0 := 1; 640#L124-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 638#L149 assume !(0 != ~mode4~0 % 256);~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);~mode4~0 := 1; 636#L149-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 632#L174 assume !(0 != ~mode5~0 % 256);~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);~mode5~0 := 1; 630#L174-2 assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 629#L331 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1; 628#L332 assume !(~r1~0 >= 5); 593#L335 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0; 594#L336 assume ~r1~0 < 5;check_~tmp~1#1 := 1; 658#L331-1 check_#res#1 := check_~tmp~1#1; 657#L351 main_#t~ret26#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret26#1;havoc main_#t~ret26#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 656#L425 assume !(0 == assert_~arg#1 % 256); 655#L420 assume { :end_inline_assert } true;main_#t~post27#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post27#1;havoc main_#t~post27#1; 605#L395-2 [2022-11-18 19:52:58,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 3 times [2022-11-18 19:52:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:58,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89894933] [2022-11-18 19:52:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:58,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:59,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:59,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:59,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:59,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1144239126, now seen corresponding path program 1 times [2022-11-18 19:52:59,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:59,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948966070] [2022-11-18 19:52:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:59,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:59,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:59,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:59,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1687762376, now seen corresponding path program 1 times [2022-11-18 19:52:59,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:59,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853170236] [2022-11-18 19:52:59,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:59,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:59,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:59,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:04,553 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:04,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:04,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:04,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:04,555 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:53:04,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:04,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:04,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:04,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.5.1.ufo.BOUNDED-10.pals.c_Iteration4_Loop [2022-11-18 19:53:04,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:04,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:04,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:04,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:04,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:04,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:04,628 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:04,635 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,281 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:07,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:09,738 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 30