./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:51:08,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:51:08,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:51:08,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:51:08,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:51:08,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:51:08,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:51:08,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:51:08,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:51:08,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:51:08,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:51:08,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:51:08,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:51:08,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:51:08,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:51:08,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:51:08,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:51:08,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:51:08,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:51:08,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:51:08,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:51:08,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:51:08,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:51:08,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:51:08,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:51:08,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:51:08,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:51:08,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:51:08,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:51:08,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:51:08,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:51:08,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:51:08,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:51:08,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:51:08,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:51:08,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:51:08,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:51:08,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:51:08,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:51:08,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:51:08,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:51:08,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 12:51:08,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:51:08,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:51:08,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:51:08,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:51:08,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:51:08,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:51:08,352 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:51:08,352 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:51:08,353 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:51:08,353 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:51:08,353 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:51:08,353 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:51:08,353 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:51:08,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:51:08,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:51:08,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:51:08,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:51:08,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:51:08,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:51:08,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:51:08,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:51:08,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:51:08,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:51:08,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:51:08,356 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:51:08,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:51:08,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:51:08,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:51:08,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:51:08,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:51:08,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:51:08,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:51:08,358 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_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2022-12-13 12:51:08,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:51:08,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:51:08,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:51:08,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:51:08,554 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:51:08,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-12-13 12:51:11,103 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:51:11,233 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:51:11,234 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-12-13 12:51:11,238 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/data/749daef15/b64270d6c20a4bcebd32ea3137d07b7e/FLAGd5d4f3638 [2022-12-13 12:51:11,648 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/data/749daef15/b64270d6c20a4bcebd32ea3137d07b7e [2022-12-13 12:51:11,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:51:11,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:51:11,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:51:11,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:51:11,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:51:11,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bdbde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11, skipping insertion in model container [2022-12-13 12:51:11,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:51:11,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:51:11,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-12-13 12:51:11,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:51:11,792 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:51:11,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-12-13 12:51:11,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:51:11,815 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:51:11,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11 WrapperNode [2022-12-13 12:51:11,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:51:11,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:51:11,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:51:11,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:51:11,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,839 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-13 12:51:11,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:51:11,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:51:11,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:51:11,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:51:11,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,852 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:51:11,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:51:11,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:51:11,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:51:11,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (1/1) ... [2022-12-13 12:51:11,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:11,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:11,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:11,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:51:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:51:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:51:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:51:11,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:51:11,975 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:51:11,977 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:51:12,078 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:51:12,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:51:12,084 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:51:12,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:51:12 BoogieIcfgContainer [2022-12-13 12:51:12,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:51:12,087 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:51:12,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:51:12,090 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:51:12,090 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:51:12,090 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:51:11" (1/3) ... [2022-12-13 12:51:12,091 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fb4d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:51:12, skipping insertion in model container [2022-12-13 12:51:12,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:51:12,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:51:11" (2/3) ... [2022-12-13 12:51:12,092 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fb4d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:51:12, skipping insertion in model container [2022-12-13 12:51:12,092 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:51:12,092 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:51:12" (3/3) ... [2022-12-13 12:51:12,093 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2022-12-13 12:51:12,136 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:51:12,137 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:51:12,137 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:51:12,137 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:51:12,137 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:51:12,137 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:51:12,137 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:51:12,138 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:51:12,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:12,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:51:12,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:12,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:12,160 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:51:12,160 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 12:51:12,161 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:51:12,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:12,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:51:12,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:12,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:12,163 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:51:12,163 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 12:51:12,169 INFO L748 eck$LassoCheckResult]: Stem: 19#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6#$Ultimate##5true [2022-12-13 12:51:12,169 INFO L750 eck$LassoCheckResult]: Loop: 6#$Ultimate##5true assume !false; 3#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 11#L36true assume 8466 == main_~s__state~0#1; 7#$Ultimate##17true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 16#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#$Ultimate##5true [2022-12-13 12:51:12,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,174 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 12:51:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:12,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572442409] [2022-12-13 12:51:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,265 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2022-12-13 12:51:12,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:12,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413333084] [2022-12-13 12:51:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:12,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:12,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2022-12-13 12:51:12,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:12,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669562869] [2022-12-13 12:51:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:12,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:12,365 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:12,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:12,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:12,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:12,366 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:51:12,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:12,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:12,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-12-13 12:51:12,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:12,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:12,378 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:12,456 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:51:12,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:12,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:12,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 12:51:12,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:12,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:12,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:12,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:12,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:12,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 12:51:12,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:51:12,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:12,501 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:51:12,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 12:51:12,504 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:12,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:12,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:12,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:12,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:51:12,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:12,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:12,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-12-13 12:51:12,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:12,505 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:12,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,512 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,550 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:12,555 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:51:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:12,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:12,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 12:51:12,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:12,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:12,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:12,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:12,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:12,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:12,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:12,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:12,576 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:51:12,584 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:51:12,584 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:51:12,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:12,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:12,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 12:51:12,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:51:12,629 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:51:12,630 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:51:12,630 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -1*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2022-12-13 12:51:12,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:12,635 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:51:12,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:12,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:51:12,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:12,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:51:12,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:12,753 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 12:51:12,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-12-13 12:51:12,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) Result 52 states and 84 transitions. Complement of second has 5 states. [2022-12-13 12:51:12,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 12:51:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-12-13 12:51:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-12-13 12:51:12,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 5 letters. [2022-12-13 12:51:12,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:12,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 7 letters. Loop has 5 letters. [2022-12-13 12:51:12,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:12,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 10 letters. [2022-12-13 12:51:12,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:12,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 84 transitions. [2022-12-13 12:51:12,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:51:12,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 38 states and 59 transitions. [2022-12-13 12:51:12,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-12-13 12:51:12,839 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-12-13 12:51:12,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2022-12-13 12:51:12,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:12,840 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2022-12-13 12:51:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2022-12-13 12:51:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-12-13 12:51:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-12-13 12:51:12,865 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-12-13 12:51:12,865 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-12-13 12:51:12,865 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:51:12,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2022-12-13 12:51:12,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:51:12,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:12,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:12,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 12:51:12,867 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 12:51:12,867 INFO L748 eck$LassoCheckResult]: Stem: 154#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 146#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 147#$Ultimate##5 assume !false; 119#L30 [2022-12-13 12:51:12,867 INFO L750 eck$LassoCheckResult]: Loop: 119#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 120#L36 assume 8466 == main_~s__state~0#1; 133#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 134#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 131#$Ultimate##5 assume !false; 119#L30 [2022-12-13 12:51:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,868 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-12-13 12:51:12,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:12,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272592370] [2022-12-13 12:51:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:12,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:12,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,878 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2022-12-13 12:51:12,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:12,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805390514] [2022-12-13 12:51:12,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:12,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2022-12-13 12:51:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:12,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108087759] [2022-12-13 12:51:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:12,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:12,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108087759] [2022-12-13 12:51:12,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108087759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:12,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:12,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583785225] [2022-12-13 12:51:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:12,953 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:12,953 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:12,954 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:12,954 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:12,954 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:51:12,954 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:12,954 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:12,954 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:12,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-12-13 12:51:12,954 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:12,954 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:12,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:12,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:12,999 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:51:13,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,001 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 12:51:13,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,023 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:51:13,023 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:51:13,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 12:51:13,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 12:51:13,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,041 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:51:13,042 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:51:13,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 12:51:13,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 12:51:13,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,063 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 12:51:13,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:51:13,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,079 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:51:13,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 12:51:13,081 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:13,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:13,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:13,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:13,082 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:51:13,082 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,082 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:13,082 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:13,082 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-12-13 12:51:13,082 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:13,082 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:13,083 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,087 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,123 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:13,123 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:51:13,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,124 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 12:51:13,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,136 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 12:51:13,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,137 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 12:51:13,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:51:13,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 12:51:13,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,143 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 12:51:13,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:13,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:13,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:51:13,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,162 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 12:51:13,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:13,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:13,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:51:13,182 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:51:13,182 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:51:13,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,183 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 12:51:13,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:51:13,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:51:13,184 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:51:13,185 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8489 Supporting invariants [] [2022-12-13 12:51:13,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 12:51:13,188 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:51:13,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:51:13,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:51:13,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:13,243 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:51:13,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,295 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 155 transitions. Complement of second has 7 states. [2022-12-13 12:51:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:51:13,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-13 12:51:13,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 5 letters. [2022-12-13 12:51:13,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:13,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 5 letters. [2022-12-13 12:51:13,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:13,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 10 letters. [2022-12-13 12:51:13,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:13,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 155 transitions. [2022-12-13 12:51:13,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-12-13 12:51:13,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 77 states and 121 transitions. [2022-12-13 12:51:13,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-12-13 12:51:13,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-12-13 12:51:13,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 121 transitions. [2022-12-13 12:51:13,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:13,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 121 transitions. [2022-12-13 12:51:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 121 transitions. [2022-12-13 12:51:13,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-12-13 12:51:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 53 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2022-12-13 12:51:13,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2022-12-13 12:51:13,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:13,308 INFO L87 Difference]: Start difference. First operand 54 states and 86 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:13,331 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2022-12-13 12:51:13,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2022-12-13 12:51:13,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-12-13 12:51:13,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2022-12-13 12:51:13,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-12-13 12:51:13,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-12-13 12:51:13,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2022-12-13 12:51:13,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:13,335 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2022-12-13 12:51:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2022-12-13 12:51:13,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-12-13 12:51:13,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 84 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2022-12-13 12:51:13,340 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-12-13 12:51:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:13,341 INFO L428 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-12-13 12:51:13,341 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:51:13,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2022-12-13 12:51:13,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-12-13 12:51:13,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:13,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:13,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 12:51:13,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:51:13,343 INFO L748 eck$LassoCheckResult]: Stem: 494#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 479#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 480#$Ultimate##5 assume !false; 453#L30 [2022-12-13 12:51:13,343 INFO L750 eck$LassoCheckResult]: Loop: 453#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 454#L36 assume !(8466 == main_~s__state~0#1); 476#L41 assume 8512 == main_~s__state~0#1; 461#main_switch_1_8512#1 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 462#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 465#$Ultimate##5 assume !false; 453#L30 [2022-12-13 12:51:13,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,343 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2022-12-13 12:51:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:13,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049765451] [2022-12-13 12:51:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:13,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2022-12-13 12:51:13,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:13,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196778444] [2022-12-13 12:51:13,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:13,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:13,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2022-12-13 12:51:13,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:13,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66088471] [2022-12-13 12:51:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:13,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:13,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66088471] [2022-12-13 12:51:13,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66088471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:13,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:13,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170997701] [2022-12-13 12:51:13,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:13,400 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:13,401 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:13,401 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:13,401 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:13,401 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:51:13,401 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:13,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:13,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-12-13 12:51:13,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:13,401 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:13,402 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,404 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 12:51:13,415 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,447 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:13,447 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:51:13,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,449 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 12:51:13,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,468 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:51:13,468 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=2} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:51:13,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 12:51:13,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,472 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 12:51:13,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,496 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:51:13,496 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=-4, ULTIMATE.start_main_~tmp___1~0#1=-4} Honda state: {ULTIMATE.start_main_#t~nondet5#1=-4, ULTIMATE.start_main_~tmp___1~0#1=-4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:51:13,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,500 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 12:51:13,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 12:51:13,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,519 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 12:51:13,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:51:13,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,535 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:51:13,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,538 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:13,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:13,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:13,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:13,538 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:51:13,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,538 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:13,538 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:13,538 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-12-13 12:51:13,538 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:13,538 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:13,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,544 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:13,570 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:51:13,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,571 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 12:51:13,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,584 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 12:51:13,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,585 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 12:51:13,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:51:13,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,591 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 12:51:13,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:13,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:13,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:51:13,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 12:51:13,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,609 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 12:51:13,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:13,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:13,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,625 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:51:13,626 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 12:51:13,626 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:51:13,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,628 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 12:51:13,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:51:13,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:51:13,630 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:51:13,630 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-12-13 12:51:13,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 12:51:13,633 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:51:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:51:13,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:51:13,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:13,672 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:51:13,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 170 states and 232 transitions. Complement of second has 9 states. [2022-12-13 12:51:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 12:51:13,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-12-13 12:51:13,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 12:51:13,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:13,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 9 letters. Loop has 6 letters. [2022-12-13 12:51:13,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:13,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 12 letters. [2022-12-13 12:51:13,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:13,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 232 transitions. [2022-12-13 12:51:13,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-12-13 12:51:13,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 141 states and 196 transitions. [2022-12-13 12:51:13,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2022-12-13 12:51:13,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-12-13 12:51:13,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 196 transitions. [2022-12-13 12:51:13,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:13,720 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 196 transitions. [2022-12-13 12:51:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 196 transitions. [2022-12-13 12:51:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2022-12-13 12:51:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 104 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2022-12-13 12:51:13,724 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 148 transitions. [2022-12-13 12:51:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:13,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:13,724 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:13,736 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions. [2022-12-13 12:51:13,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 94 transitions. [2022-12-13 12:51:13,737 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-12-13 12:51:13,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 61 states and 90 transitions. [2022-12-13 12:51:13,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-12-13 12:51:13,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-12-13 12:51:13,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2022-12-13 12:51:13,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:13,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-12-13 12:51:13,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2022-12-13 12:51:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-13 12:51:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 60 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2022-12-13 12:51:13,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-12-13 12:51:13,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:13,742 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-12-13 12:51:13,743 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 12:51:13,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2022-12-13 12:51:13,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-12-13 12:51:13,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:13,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:13,744 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:13,744 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:51:13,744 INFO L748 eck$LassoCheckResult]: Stem: 974#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 965#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 966#$Ultimate##5 assume !false; 936#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 937#L36 assume 8466 == main_~s__state~0#1; 964#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 980#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 976#$Ultimate##5 assume !false; 975#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 962#L36 assume !(8466 == main_~s__state~0#1); 963#L41 [2022-12-13 12:51:13,744 INFO L750 eck$LassoCheckResult]: Loop: 963#L41 assume 8512 == main_~s__state~0#1; 938#main_switch_1_8512#1 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 939#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 960#$Ultimate##5 assume !false; 994#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 993#L36 assume !(8466 == main_~s__state~0#1); 963#L41 [2022-12-13 12:51:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2022-12-13 12:51:13,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:13,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103831451] [2022-12-13 12:51:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:13,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:13,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2022-12-13 12:51:13,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:13,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633941199] [2022-12-13 12:51:13,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:13,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:13,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2022-12-13 12:51:13,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:13,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254860056] [2022-12-13 12:51:13,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:13,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:13,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:13,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254860056] [2022-12-13 12:51:13,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254860056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:13,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:13,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:13,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388050486] [2022-12-13 12:51:13,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:13,819 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:13,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:13,819 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:13,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:13,819 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:51:13,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:13,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:13,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-12-13 12:51:13,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:13,819 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:13,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,843 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:13,844 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:51:13,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,844 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 12:51:13,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 12:51:13,864 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0, ULTIMATE.start_main_~tmp___1~0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0, ULTIMATE.start_main_~tmp___1~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 12:51:13,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 12:51:13,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,869 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 12:51:13,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:13,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 12:51:13,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,891 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 12:51:13,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:51:13,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:13,906 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:51:13,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,909 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:13,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:13,909 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:13,909 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:13,909 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:51:13,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:13,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:13,909 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-12-13 12:51:13,909 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:13,909 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:13,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:13,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:13,933 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:51:13,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,935 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 12:51:13,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:13,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:13,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 12:51:13,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:13,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,955 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 12:51:13,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:13,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:13,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:13,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:13,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:13,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:13,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:13,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:13,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:51:13,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 12:51:13,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:51:13,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:13,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:13,973 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:13,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 12:51:13,975 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:51:13,975 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:51:13,975 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:51:13,976 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8576 Supporting invariants [] [2022-12-13 12:51:13,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 12:51:13,979 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:51:13,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:13,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:51:13,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:51:14,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,028 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 12:51:14,029 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 183 states and 281 transitions. Complement of second has 9 states. [2022-12-13 12:51:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 12:51:14,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-12-13 12:51:14,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 6 letters. [2022-12-13 12:51:14,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:14,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 16 letters. Loop has 6 letters. [2022-12-13 12:51:14,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:14,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 12 letters. [2022-12-13 12:51:14,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:14,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 281 transitions. [2022-12-13 12:51:14,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-12-13 12:51:14,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 163 states and 245 transitions. [2022-12-13 12:51:14,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-12-13 12:51:14,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-12-13 12:51:14,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 245 transitions. [2022-12-13 12:51:14,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,083 INFO L218 hiAutomatonCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-12-13 12:51:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 245 transitions. [2022-12-13 12:51:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 125. [2022-12-13 12:51:14,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2022-12-13 12:51:14,090 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-12-13 12:51:14,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:14,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:14,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:14,090 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-12-13 12:51:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:14,112 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2022-12-13 12:51:14,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 223 transitions. [2022-12-13 12:51:14,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2022-12-13 12:51:14,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 211 transitions. [2022-12-13 12:51:14,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2022-12-13 12:51:14,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-12-13 12:51:14,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 211 transitions. [2022-12-13 12:51:14,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,115 INFO L218 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2022-12-13 12:51:14,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 211 transitions. [2022-12-13 12:51:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2022-12-13 12:51:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 133 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2022-12-13 12:51:14,121 INFO L240 hiAutomatonCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-12-13 12:51:14,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:14,122 INFO L428 stractBuchiCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-12-13 12:51:14,122 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 12:51:14,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 191 transitions. [2022-12-13 12:51:14,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2022-12-13 12:51:14,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:14,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:14,124 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,124 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,124 INFO L748 eck$LassoCheckResult]: Stem: 1585#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 1573#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1574#$Ultimate##5 assume !false; 1676#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1674#L36 assume 8466 == main_~s__state~0#1; 1560#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1561#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1556#$Ultimate##5 [2022-12-13 12:51:14,124 INFO L750 eck$LassoCheckResult]: Loop: 1556#$Ultimate##5 assume !false; 1544#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1545#L36 assume !(8466 == main_~s__state~0#1); 1571#L41 assume !(8512 == main_~s__state~0#1); 1587#L57 assume !(8640 == main_~s__state~0#1); 1552#L61 assume 8656 == main_~s__state~0#1; 1553#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1562#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1564#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1582#$Ultimate##5 assume !false; 1617#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1618#L36 assume 8466 == main_~s__state~0#1; 1558#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1559#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1556#$Ultimate##5 [2022-12-13 12:51:14,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2022-12-13 12:51:14,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197275498] [2022-12-13 12:51:14,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2022-12-13 12:51:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317887933] [2022-12-13 12:51:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:14,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317887933] [2022-12-13 12:51:14,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317887933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:14,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:14,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:14,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133951786] [2022-12-13 12:51:14,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:14,155 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:51:14,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:14,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:14,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:14,155 INFO L87 Difference]: Start difference. First operand 134 states and 191 transitions. cyclomatic complexity: 65 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:14,172 INFO L93 Difference]: Finished difference Result 182 states and 254 transitions. [2022-12-13 12:51:14,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 254 transitions. [2022-12-13 12:51:14,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-12-13 12:51:14,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 254 transitions. [2022-12-13 12:51:14,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2022-12-13 12:51:14,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-12-13 12:51:14,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2022-12-13 12:51:14,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,175 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-12-13 12:51:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2022-12-13 12:51:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-13 12:51:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.3956043956043955) internal successors, (254), 181 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2022-12-13 12:51:14,182 INFO L240 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-12-13 12:51:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:14,182 INFO L428 stractBuchiCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-12-13 12:51:14,182 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 12:51:14,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 254 transitions. [2022-12-13 12:51:14,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-12-13 12:51:14,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:14,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:14,184 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,184 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,184 INFO L748 eck$LassoCheckResult]: Stem: 1914#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 1896#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1878#$Ultimate##5 assume !false; 1879#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2026#L36 assume 8466 == main_~s__state~0#1; 1965#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1962#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1937#$Ultimate##5 [2022-12-13 12:51:14,185 INFO L750 eck$LassoCheckResult]: Loop: 1937#$Ultimate##5 assume !false; 1950#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1951#L36 assume !(8466 == main_~s__state~0#1); 1942#L41 assume !(8512 == main_~s__state~0#1); 1943#L57 assume !(8640 == main_~s__state~0#1); 1870#L61 assume 8656 == main_~s__state~0#1; 1871#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1886#L100-1 assume !(4 == main_~blastFlag~0#1); 1887#L107 assume !(5 == main_~blastFlag~0#1); 1915#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1916#$Ultimate##5 assume !false; 1990#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1987#L36 assume 8466 == main_~s__state~0#1; 1881#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1882#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1937#$Ultimate##5 [2022-12-13 12:51:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2022-12-13 12:51:14,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088785428] [2022-12-13 12:51:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,190 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2022-12-13 12:51:14,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253429723] [2022-12-13 12:51:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:14,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253429723] [2022-12-13 12:51:14,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253429723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:14,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:14,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:14,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111469270] [2022-12-13 12:51:14,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:14,214 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:51:14,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:14,215 INFO L87 Difference]: Start difference. First operand 182 states and 254 transitions. cyclomatic complexity: 80 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:14,232 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2022-12-13 12:51:14,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 202 transitions. [2022-12-13 12:51:14,234 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-12-13 12:51:14,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 111 states and 141 transitions. [2022-12-13 12:51:14,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2022-12-13 12:51:14,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-12-13 12:51:14,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 141 transitions. [2022-12-13 12:51:14,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 141 transitions. [2022-12-13 12:51:14,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 141 transitions. [2022-12-13 12:51:14,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2022-12-13 12:51:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.276190476190476) internal successors, (134), 104 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2022-12-13 12:51:14,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-12-13 12:51:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:14,239 INFO L428 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-12-13 12:51:14,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 12:51:14,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2022-12-13 12:51:14,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-12-13 12:51:14,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:14,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:14,240 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,240 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,241 INFO L748 eck$LassoCheckResult]: Stem: 2248#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 2233#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2221#$Ultimate##5 assume !false; 2222#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2309#L36 assume 8466 == main_~s__state~0#1; 2270#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2267#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2266#$Ultimate##5 [2022-12-13 12:51:14,241 INFO L750 eck$LassoCheckResult]: Loop: 2266#$Ultimate##5 assume !false; 2286#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2283#L36 assume !(8466 == main_~s__state~0#1); 2280#L41 assume !(8512 == main_~s__state~0#1); 2251#L57 assume !(8640 == main_~s__state~0#1); 2219#L61 assume 8656 == main_~s__state~0#1; 2220#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2230#L100-1 assume !(4 == main_~blastFlag~0#1); 2231#L107 assume !(5 == main_~blastFlag~0#1); 2249#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2250#$Ultimate##5 assume !false; 2211#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2212#L36 assume !(8466 == main_~s__state~0#1); 2234#L41 assume !(8512 == main_~s__state~0#1); 2243#L57 assume 8640 == main_~s__state~0#1; 2255#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2290#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2266#$Ultimate##5 [2022-12-13 12:51:14,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2022-12-13 12:51:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898145913] [2022-12-13 12:51:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2022-12-13 12:51:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215776198] [2022-12-13 12:51:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:14,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215776198] [2022-12-13 12:51:14,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215776198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:14,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:14,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249822842] [2022-12-13 12:51:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:14,269 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:51:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:14,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:14,269 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:14,279 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2022-12-13 12:51:14,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2022-12-13 12:51:14,280 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-12-13 12:51:14,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2022-12-13 12:51:14,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2022-12-13 12:51:14,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-12-13 12:51:14,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2022-12-13 12:51:14,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-12-13 12:51:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2022-12-13 12:51:14,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-12-13 12:51:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 115 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2022-12-13 12:51:14,284 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-12-13 12:51:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:14,285 INFO L428 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-12-13 12:51:14,285 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-12-13 12:51:14,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2022-12-13 12:51:14,286 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-12-13 12:51:14,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:14,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:14,286 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,286 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,287 INFO L748 eck$LassoCheckResult]: Stem: 2473#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 2459#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2460#$Ultimate##5 assume !false; 2440#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2441#L36 assume 8466 == main_~s__state~0#1; 2453#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2454#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2507#$Ultimate##5 [2022-12-13 12:51:14,287 INFO L750 eck$LassoCheckResult]: Loop: 2507#$Ultimate##5 assume !false; 2550#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2548#L36 assume !(8466 == main_~s__state~0#1); 2546#L41 assume !(8512 == main_~s__state~0#1); 2476#L57 assume !(8640 == main_~s__state~0#1); 2477#L61 assume 8656 == main_~s__state~0#1; 2544#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2455#L100-1 assume !(4 == main_~blastFlag~0#1); 2456#L107 assume !(5 == main_~blastFlag~0#1); 2553#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2519#$Ultimate##5 assume !false; 2551#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2549#L36 assume !(8466 == main_~s__state~0#1); 2547#L41 assume !(8512 == main_~s__state~0#1); 2484#L57 assume 8640 == main_~s__state~0#1; 2485#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2552#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2507#$Ultimate##5 [2022-12-13 12:51:14,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2022-12-13 12:51:14,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756580190] [2022-12-13 12:51:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 12:51:14,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 12:51:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,301 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2022-12-13 12:51:14,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074831365] [2022-12-13 12:51:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074831365] [2022-12-13 12:51:14,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074831365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:14,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:14,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:51:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65061908] [2022-12-13 12:51:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:14,314 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:51:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:14,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:14,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:14,314 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. cyclomatic complexity: 38 Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:14,319 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2022-12-13 12:51:14,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2022-12-13 12:51:14,320 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-12-13 12:51:14,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2022-12-13 12:51:14,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-12-13 12:51:14,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-12-13 12:51:14,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2022-12-13 12:51:14,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,321 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2022-12-13 12:51:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2022-12-13 12:51:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2022-12-13 12:51:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 108 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2022-12-13 12:51:14,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-12-13 12:51:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:14,323 INFO L428 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-12-13 12:51:14,323 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-12-13 12:51:14,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2022-12-13 12:51:14,324 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-12-13 12:51:14,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:14,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:14,324 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,324 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,324 INFO L748 eck$LassoCheckResult]: Stem: 2740#$Ultimate##0 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(17, 2);call #Ultimate.allocInit(12, 3); 2722#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_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2723#$Ultimate##5 assume !false; 2785#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2786#L36 assume 8466 == main_~s__state~0#1; 2774#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2772#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2712#$Ultimate##5 [2022-12-13 12:51:14,324 INFO L750 eck$LassoCheckResult]: Loop: 2712#$Ultimate##5 assume !false; 2702#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2703#L36 assume !(8466 == main_~s__state~0#1); 2724#L41 assume !(8512 == main_~s__state~0#1); 2734#L57 assume !(8640 == main_~s__state~0#1); 2710#L61 assume 8656 == main_~s__state~0#1; 2711#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2718#L100-1 assume !(4 == main_~blastFlag~0#1); 2719#L107 assume !(5 == main_~blastFlag~0#1); 2741#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2712#$Ultimate##5 [2022-12-13 12:51:14,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2022-12-13 12:51:14,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754424003] [2022-12-13 12:51:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2022-12-13 12:51:14,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427046076] [2022-12-13 12:51:14,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,341 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2022-12-13 12:51:14,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838654676] [2022-12-13 12:51:14,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:14,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838654676] [2022-12-13 12:51:14,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838654676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:14,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:51:14,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:51:14,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93338997] [2022-12-13 12:51:14,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:14,391 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:14,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:14,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:14,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:14,391 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 12:51:14,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:14,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:14,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:14,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-12-13 12:51:14,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:14,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:14,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:14,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:14,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:14,450 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:14,450 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 12:51:14,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:14,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:14,451 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:14,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 12:51:14,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 12:51:14,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:14,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 12:51:14,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:14,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:14,476 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:14,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 12:51:14,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 12:51:14,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 12:51:14,490 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 12:51:14,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:14,493 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 12:51:14,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 12:51:14,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 12:51:14,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 12:51:14,493 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 12:51:14,493 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:14,493 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 12:51:14,493 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 12:51:14,493 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-12-13 12:51:14,493 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 12:51:14,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 12:51:14,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:14,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:14,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 12:51:14,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 12:51:14,543 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 12:51:14,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:14,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:14,544 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:14,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 12:51:14,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 12:51:14,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 12:51:14,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 12:51:14,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 12:51:14,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 12:51:14,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 12:51:14,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 12:51:14,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 12:51:14,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 12:51:14,561 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 12:51:14,561 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 12:51:14,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:51:14,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:14,562 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:51:14,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 12:51:14,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 12:51:14,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 12:51:14,564 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 12:51:14,564 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-12-13 12:51:14,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-12-13 12:51:14,567 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 12:51:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:51:14,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:14,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:51:14,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:14,607 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 12:51:14,607 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,624 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 178 transitions. Complement of second has 6 states. [2022-12-13 12:51:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 12:51:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-12-13 12:51:14,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2022-12-13 12:51:14,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:14,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2022-12-13 12:51:14,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:14,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2022-12-13 12:51:14,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 12:51:14,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2022-12-13 12:51:14,627 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-12-13 12:51:14,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2022-12-13 12:51:14,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-12-13 12:51:14,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-12-13 12:51:14,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2022-12-13 12:51:14,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,628 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-12-13 12:51:14,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2022-12-13 12:51:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-12-13 12:51:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 108 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2022-12-13 12:51:14,631 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-12-13 12:51:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:14,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:51:14,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:51:14,631 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:14,641 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2022-12-13 12:51:14,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2022-12-13 12:51:14,642 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-12-13 12:51:14,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2022-12-13 12:51:14,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-12-13 12:51:14,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-12-13 12:51:14,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2022-12-13 12:51:14,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 12:51:14,643 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-12-13 12:51:14,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2022-12-13 12:51:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-13 12:51:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 61 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:51:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2022-12-13 12:51:14,644 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-12-13 12:51:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:51:14,645 INFO L428 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-12-13 12:51:14,645 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-12-13 12:51:14,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2022-12-13 12:51:14,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-12-13 12:51:14,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:51:14,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:51:14,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,646 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:14,646 INFO L748 eck$LassoCheckResult]: Stem: 3268#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3259#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3260#$Ultimate##5 assume !false; 3285#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3283#L36 assume 8466 == main_~s__state~0#1; 3282#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3281#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3279#$Ultimate##5 assume !false; 3275#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3273#L36 assume !(8466 == main_~s__state~0#1); 3271#L41 assume 8512 == main_~s__state~0#1; 3241#main_switch_1_8512#1 [2022-12-13 12:51:14,646 INFO L750 eck$LassoCheckResult]: Loop: 3241#main_switch_1_8512#1 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3242#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3255#$Ultimate##5 assume !false; 3291#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3289#L36 assume 8466 == main_~s__state~0#1; 3249#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 3250#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3267#$Ultimate##5 assume !false; 3290#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3288#L36 assume !(8466 == main_~s__state~0#1); 3270#L41 assume 8512 == main_~s__state~0#1; 3241#main_switch_1_8512#1 [2022-12-13 12:51:14,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,647 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2022-12-13 12:51:14,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569132679] [2022-12-13 12:51:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2022-12-13 12:51:14,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129430009] [2022-12-13 12:51:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2022-12-13 12:51:14,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:14,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739372566] [2022-12-13 12:51:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:51:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:51:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:51:14,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:51:14 BoogieIcfgContainer [2022-12-13 12:51:14,844 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:51:14,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:51:14,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:51:14,845 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:51:14,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:51:12" (3/4) ... [2022-12-13 12:51:14,847 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:51:14,869 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:51:14,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:51:14,870 INFO L158 Benchmark]: Toolchain (without parser) took 3219.00ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 100.6MB in the beginning and 74.7MB in the end (delta: 25.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2022-12-13 12:51:14,870 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:51:14,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.32ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 90.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:51:14,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.87ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:51:14,870 INFO L158 Benchmark]: Boogie Preprocessor took 14.08ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 87.5MB in the end (delta: 960.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:51:14,870 INFO L158 Benchmark]: RCFGBuilder took 231.75ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 77.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:51:14,871 INFO L158 Benchmark]: BuchiAutomizer took 2757.62ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 76.5MB in the beginning and 77.9MB in the end (delta: -1.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-12-13 12:51:14,871 INFO L158 Benchmark]: Witness Printer took 24.70ms. Allocated memory is still 176.2MB. Free memory was 76.9MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:51:14,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.32ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 90.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.87ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.08ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 87.5MB in the end (delta: 960.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.75ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 77.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2757.62ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 76.5MB in the beginning and 77.9MB in the end (delta: -1.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 24.70ms. Allocated memory is still 176.2MB. Free memory was 76.9MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * blastFlag + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8489 and consists of 4 locations. One deterministic module has affine ranking function s__state and consists of 5 locations. One deterministic module has affine ranking function 8576 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 13. Automata minimization 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 155 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 548 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 352 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf91 smp100 dnf180 smp78 tf112 neg93 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L29] COND TRUE 1 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0, s__state=8466] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2, s__state=8466] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L29] COND TRUE 1 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L29] COND TRUE 1 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0, s__state=8466] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2, s__state=8466] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L29] COND TRUE 1 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:51:14,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-12-13 12:51:15,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3105cc2d-153d-4a8c-a5fc-5abdd36da53f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)