./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/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_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-18 19:53:13,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:53:13,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:53:13,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:53:13,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:53:13,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:53:13,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:53:13,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:53:13,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:53:13,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:53:13,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:53:13,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:53:13,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:53:13,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:53:13,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:53:13,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:53:13,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:53:13,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:53:13,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:53:13,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:53:13,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:53:13,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:53:13,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:53:13,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:53:13,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:53:13,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:53:13,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:53:13,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:53:13,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:53:13,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:53:13,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:53:13,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:53:13,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:53:13,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:53:13,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:53:13,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:53:13,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:53:13,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:53:13,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:53:13,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:53:13,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:53:13,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:53:13,563 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:53:13,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:53:13,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:53:13,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:53:13,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:53:13,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:53:13,565 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:53:13,565 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:53:13,566 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:53:13,566 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:53:13,566 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:53:13,566 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:53:13,566 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:53:13,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:53:13,567 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:53:13,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:53:13,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:53:13,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:53:13,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:53:13,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:53:13,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:53:13,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:53:13,568 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:53:13,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:53:13,568 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:53:13,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:53:13,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:53:13,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:53:13,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:53:13,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:53:13,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:53:13,570 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:53:13,571 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2022-11-18 19:53:13,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:53:13,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:53:13,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:53:13,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:53:13,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:53:13,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-11-18 19:53:13,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/data/d75452f3c/f4ca8c0ca0484b558f954f02cb27711f/FLAG56aa0fe5b [2022-11-18 19:53:14,478 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:53:14,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-11-18 19:53:14,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/data/d75452f3c/f4ca8c0ca0484b558f954f02cb27711f/FLAG56aa0fe5b [2022-11-18 19:53:14,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/data/d75452f3c/f4ca8c0ca0484b558f954f02cb27711f [2022-11-18 19:53:14,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:53:14,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:53:14,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:14,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:53:14,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:53:14,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:14" (1/1) ... [2022-11-18 19:53:14,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23354316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:14, skipping insertion in model container [2022-11-18 19:53:14,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:14" (1/1) ... [2022-11-18 19:53:14,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:53:14,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:53:15,071 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-11-18 19:53:15,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:15,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:53:15,137 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-11-18 19:53:15,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:15,150 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:53:15,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15 WrapperNode [2022-11-18 19:53:15,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:15,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:15,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:53:15,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:53:15,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,182 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-11-18 19:53:15,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:15,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:53:15,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:53:15,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:53:15,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:53:15,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:53:15,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:53:15,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:53:15,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (1/1) ... [2022-11-18 19:53:15,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:15,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:15,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:15,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:53:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:53:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:53:15,343 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:53:15,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:53:15,539 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:53:15,546 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:53:15,546 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:53:15,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:15 BoogieIcfgContainer [2022-11-18 19:53:15,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:53:15,549 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:53:15,549 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:53:15,561 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:53:15,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:53:15,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:53:14" (1/3) ... [2022-11-18 19:53:15,563 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35759929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:53:15, skipping insertion in model container [2022-11-18 19:53:15,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:53:15,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:15" (2/3) ... [2022-11-18 19:53:15,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35759929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:53:15, skipping insertion in model container [2022-11-18 19:53:15,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:53:15,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:15" (3/3) ... [2022-11-18 19:53:15,565 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2022-11-18 19:53:15,678 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:53:15,679 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:53:15,679 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:53:15,679 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:53:15,679 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:53:15,679 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:53:15,680 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:53:15,680 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:53:15,685 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) [2022-11-18 19:53:15,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-18 19:53:15,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:15,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:15,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 19:53:15,738 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:53:15,738 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:53:15,738 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) [2022-11-18 19:53:15,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-18 19:53:15,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:15,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:15,741 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 19:53:15,741 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:53:15,751 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 11#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#L111true [2022-11-18 19:53:15,752 INFO L750 eck$LassoCheckResult]: Loop: 6#L111true assume !false; 4#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 12#L36true assume 8466 == main_~s__state~0#1; 14#L37true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#L111true [2022-11-18 19:53:15,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 19:53:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:15,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480402462] [2022-11-18 19:53:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:15,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:15,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:15,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:15,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2022-11-18 19:53:15,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973514725] [2022-11-18 19:53:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:15,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:15,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2022-11-18 19:53:15,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:15,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365824138] [2022-11-18 19:53:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:15,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:15,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:16,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:16,152 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:16,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:16,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:16,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:16,153 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:53:16,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:16,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:16,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:16,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-11-18 19:53:16,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:16,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:16,174 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:16,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:16,207 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:16,286 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:16,287 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:53:16,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:16,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:16,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:16,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:16,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:16,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 19:53:16,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:16,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:16,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:16,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:16,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 19:53:16,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:53:16,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:16,388 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:53:16,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:16,395 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:16,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:16,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:16,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:16,396 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:53:16,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:16,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:16,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:16,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-11-18 19:53:16,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:16,397 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:16,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:16,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:16,472 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:16,550 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:16,554 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:53:16,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:16,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:16,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:16,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:16,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:16,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:16,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:16,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:16,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:16,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:16,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:16,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 19:53:16,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:53:16,626 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:53:16,626 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:53:16,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:16,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:16,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:16,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:53:16,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:53:16,652 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:53:16,653 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 [] [2022-11-18 19:53:16,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 19:53:16,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-18 19:53:16,660 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:53:16,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:16,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:53:16,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:16,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:53:16,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:16,851 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 19:53:16,854 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) [2022-11-18 19:53:16,917 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. [2022-11-18 19:53:16,919 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 [2022-11-18 19:53:16,923 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) [2022-11-18 19:53:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-11-18 19:53:16,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 5 letters. [2022-11-18 19:53:16,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:16,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 7 letters. Loop has 5 letters. [2022-11-18 19:53:16,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:16,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 10 letters. [2022-11-18 19:53:16,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:16,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 84 transitions. [2022-11-18 19:53:16,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-18 19:53:16,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 38 states and 59 transitions. [2022-11-18 19:53:16,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-18 19:53:16,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-18 19:53:16,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2022-11-18 19:53:16,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:16,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2022-11-18 19:53:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2022-11-18 19:53:16,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-11-18 19:53:16,964 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) [2022-11-18 19:53:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-11-18 19:53:16,966 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-11-18 19:53:16,966 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-11-18 19:53:16,966 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:53:16,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2022-11-18 19:53:16,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-18 19:53:16,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:16,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:16,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:53:16,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 19:53:16,969 INFO L748 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 124#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#L111 assume !false; 119#L30 [2022-11-18 19:53:16,969 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; 143#L37 assume !(0 == main_~blastFlag~0#1); 150#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 129#L111 assume !false; 119#L30 [2022-11-18 19:53:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:16,969 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-18 19:53:16,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:16,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653518802] [2022-11-18 19:53:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:16,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:16,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2022-11-18 19:53:16,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:16,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494626039] [2022-11-18 19:53:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:16,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:16,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:16,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:16,995 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2022-11-18 19:53:16,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:16,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423701585] [2022-11-18 19:53:16,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:16,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:17,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:17,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423701585] [2022-11-18 19:53:17,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423701585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:17,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:17,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:17,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003840786] [2022-11-18 19:53:17,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:17,084 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:17,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:17,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:17,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:17,085 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:53:17,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:17,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:17,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-11-18 19:53:17,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:17,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:17,087 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,093 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,149 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:17,150 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:53:17,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,151 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 19:53:17,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:17,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:17,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:53:17,193 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: [] [2022-11-18 19:53:17,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 19:53:17,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:17,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:17,229 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:53:17,229 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: [] [2022-11-18 19:53:17,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,239 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 19:53:17,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:17,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:17,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,285 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:53:17,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:17,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 19:53:17,327 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:53:17,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,336 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:17,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:17,336 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:17,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:17,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:53:17,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:17,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:17,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-11-18 19:53:17,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:17,336 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:17,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,344 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:17,416 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:53:17,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,419 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:17,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:17,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:17,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:17,441 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-18 19:53:17,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:17,444 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-18 19:53:17,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:17,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 19:53:17,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:53:17,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,465 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:17,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:17,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:17,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:17,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:17,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:17,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:17,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:17,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 19:53:17,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:53:17,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,505 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:17,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:17,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:17,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:17,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:17,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:17,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:17,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:17,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 19:53:17,547 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:53:17,558 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:53:17,558 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:53:17,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:17,563 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:17,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 19:53:17,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:53:17,569 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:53:17,569 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:53:17,570 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 [] [2022-11-18 19:53:17,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,579 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:53:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:17,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:53:17,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:17,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:53:17,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:17,672 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 [2022-11-18 19:53:17,673 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) [2022-11-18 19:53:17,753 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. [2022-11-18 19:53:17,755 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 [2022-11-18 19:53:17,756 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) [2022-11-18 19:53:17,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-11-18 19:53:17,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 5 letters. [2022-11-18 19:53:17,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:17,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 5 letters. [2022-11-18 19:53:17,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:17,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 10 letters. [2022-11-18 19:53:17,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:17,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 155 transitions. [2022-11-18 19:53:17,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-18 19:53:17,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 77 states and 121 transitions. [2022-11-18 19:53:17,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-11-18 19:53:17,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-11-18 19:53:17,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 121 transitions. [2022-11-18 19:53:17,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:17,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 121 transitions. [2022-11-18 19:53:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 121 transitions. [2022-11-18 19:53:17,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-11-18 19:53:17,802 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) [2022-11-18 19:53:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2022-11-18 19:53:17,803 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2022-11-18 19:53:17,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:17,807 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) [2022-11-18 19:53:17,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:17,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:17,853 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2022-11-18 19:53:17,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2022-11-18 19:53:17,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-18 19:53:17,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2022-11-18 19:53:17,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-11-18 19:53:17,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-11-18 19:53:17,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2022-11-18 19:53:17,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:17,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2022-11-18 19:53:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2022-11-18 19:53:17,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-11-18 19:53:17,862 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) [2022-11-18 19:53:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2022-11-18 19:53:17,863 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-11-18 19:53:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:17,864 INFO L428 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-11-18 19:53:17,864 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:53:17,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2022-11-18 19:53:17,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-18 19:53:17,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:17,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:17,867 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:53:17,867 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:53:17,867 INFO L748 eck$LassoCheckResult]: Stem: 457#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 458#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; 479#L111 assume !false; 453#L30 [2022-11-18 19:53:17,867 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; 480#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 474#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 463#L111 assume !false; 453#L30 [2022-11-18 19:53:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2022-11-18 19:53:17,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:17,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82905077] [2022-11-18 19:53:17,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:17,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:17,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:17,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2022-11-18 19:53:17,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:17,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558099083] [2022-11-18 19:53:17,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:17,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:17,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:17,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:17,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2022-11-18 19:53:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:17,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893737536] [2022-11-18 19:53:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:17,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:17,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:17,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893737536] [2022-11-18 19:53:17,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893737536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:17,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:17,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:17,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981185316] [2022-11-18 19:53:17,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:17,953 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:17,953 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:17,953 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:17,953 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:17,953 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:53:17,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:17,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:17,954 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:17,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-11-18 19:53:17,954 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:17,954 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:17,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:17,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,022 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:18,023 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:53:18,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 19:53:18,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:18,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,072 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:53:18,072 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: [] [2022-11-18 19:53:18,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,077 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 19:53:18,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:18,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:53:18,109 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: [] [2022-11-18 19:53:18,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,119 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 19:53:18,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:18,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,164 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:53:18,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 19:53:18,203 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:53:18,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-11-18 19:53:18,207 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:18,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:18,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:18,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:18,208 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:53:18,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,208 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:18,208 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:18,208 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-11-18 19:53:18,208 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:18,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:18,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,218 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:18,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:53:18,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,283 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:18,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:18,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:18,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:18,309 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-18 19:53:18,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:18,311 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-18 19:53:18,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:18,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 19:53:18,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:53:18,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,332 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:18,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:18,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:18,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:18,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:18,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:18,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:18,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:18,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 19:53:18,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:53:18,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,381 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:18,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:18,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:18,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:18,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:18,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:18,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:18,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:18,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 19:53:18,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:53:18,424 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 19:53:18,424 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:53:18,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,425 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,441 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:53:18,441 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:53:18,442 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:53:18,442 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 [] [2022-11-18 19:53:18,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 19:53:18,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,446 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:53:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:18,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:53:18,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:18,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:53:18,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:18,538 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 [2022-11-18 19:53:18,539 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) [2022-11-18 19:53:18,641 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. [2022-11-18 19:53:18,641 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 [2022-11-18 19:53:18,642 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) [2022-11-18 19:53:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-11-18 19:53:18,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-18 19:53:18,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:18,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-18 19:53:18,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:18,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 12 letters. [2022-11-18 19:53:18,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:18,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 232 transitions. [2022-11-18 19:53:18,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-18 19:53:18,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 141 states and 196 transitions. [2022-11-18 19:53:18,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2022-11-18 19:53:18,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-18 19:53:18,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 196 transitions. [2022-11-18 19:53:18,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:18,660 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 196 transitions. [2022-11-18 19:53:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 196 transitions. [2022-11-18 19:53:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2022-11-18 19:53:18,665 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) [2022-11-18 19:53:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2022-11-18 19:53:18,666 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 148 transitions. [2022-11-18 19:53:18,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:18,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:18,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:18,667 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) [2022-11-18 19:53:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:18,687 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions. [2022-11-18 19:53:18,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 94 transitions. [2022-11-18 19:53:18,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-11-18 19:53:18,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 61 states and 90 transitions. [2022-11-18 19:53:18,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-18 19:53:18,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-11-18 19:53:18,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2022-11-18 19:53:18,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:18,689 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-11-18 19:53:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2022-11-18 19:53:18,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-18 19:53:18,693 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) [2022-11-18 19:53:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2022-11-18 19:53:18,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-11-18 19:53:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:18,694 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-11-18 19:53:18,695 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:53:18,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2022-11-18 19:53:18,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-11-18 19:53:18,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:18,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:18,696 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:18,696 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:53:18,697 INFO L748 eck$LassoCheckResult]: Stem: 938#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 939#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; 944#L111 assume !false; 945#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 965#L36 assume 8466 == main_~s__state~0#1; 966#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 984#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 980#L111 assume !false; 979#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 977#L36 assume !(8466 == main_~s__state~0#1); 972#L41 [2022-11-18 19:53:18,697 INFO L750 eck$LassoCheckResult]: Loop: 972#L41 assume 8512 == main_~s__state~0#1; 967#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 958#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 960#L111 assume !false; 934#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 935#L36 assume !(8466 == main_~s__state~0#1); 972#L41 [2022-11-18 19:53:18,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:18,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2022-11-18 19:53:18,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:18,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624675615] [2022-11-18 19:53:18,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:18,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:18,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:18,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:18,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2022-11-18 19:53:18,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:18,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335355422] [2022-11-18 19:53:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:18,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:18,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:18,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2022-11-18 19:53:18,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:18,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3235556] [2022-11-18 19:53:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:18,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:18,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:18,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3235556] [2022-11-18 19:53:18,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3235556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:18,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:18,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:18,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431941049] [2022-11-18 19:53:18,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:18,819 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:18,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:18,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:18,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:18,820 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:53:18,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:18,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:18,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-11-18 19:53:18,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:18,821 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:18,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,862 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:18,862 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:53:18,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,864 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:18,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 19:53:18,903 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:53:18,903 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: [] [2022-11-18 19:53:18,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,914 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:18,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 19:53:18,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:18,953 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:18,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:53:18,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:18,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 19:53:18,987 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:53:18,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:18,991 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:18,991 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:18,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:18,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:18,991 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:53:18,991 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:18,991 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:18,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:18,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-11-18 19:53:18,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:18,991 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:18,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:18,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:19,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-11-18 19:53:19,056 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:19,056 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:53:19,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:19,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:19,059 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:19,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:19,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:19,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:19,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:19,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:19,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:19,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:19,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:19,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 19:53:19,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:53:19,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:19,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:19,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:19,100 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:19,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:19,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:19,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:19,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:19,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:19,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:19,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:19,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:19,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 19:53:19,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:53:19,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:53:19,142 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:53:19,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:19,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:19,143 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:19,148 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:53:19,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:53:19,149 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:53:19,149 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 [] [2022-11-18 19:53:19,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 19:53:19,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:19,159 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:53:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:53:19,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:53:19,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:19,286 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 [2022-11-18 19:53:19,286 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) [2022-11-18 19:53:19,373 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. [2022-11-18 19:53:19,374 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 [2022-11-18 19:53:19,375 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) [2022-11-18 19:53:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-11-18 19:53:19,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-18 19:53:19,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:19,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-18 19:53:19,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:19,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 12 letters. [2022-11-18 19:53:19,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:19,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 281 transitions. [2022-11-18 19:53:19,380 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-11-18 19:53:19,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 163 states and 245 transitions. [2022-11-18 19:53:19,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-18 19:53:19,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-11-18 19:53:19,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 245 transitions. [2022-11-18 19:53:19,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:19,383 INFO L218 hiAutomatonCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-11-18 19:53:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 245 transitions. [2022-11-18 19:53:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 125. [2022-11-18 19:53:19,405 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) [2022-11-18 19:53:19,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2022-11-18 19:53:19,409 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-18 19:53:19,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:19,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:19,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:19,411 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) [2022-11-18 19:53:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:19,444 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2022-11-18 19:53:19,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 223 transitions. [2022-11-18 19:53:19,447 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2022-11-18 19:53:19,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 211 transitions. [2022-11-18 19:53:19,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2022-11-18 19:53:19,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-11-18 19:53:19,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 211 transitions. [2022-11-18 19:53:19,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:19,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2022-11-18 19:53:19,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 211 transitions. [2022-11-18 19:53:19,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2022-11-18 19:53:19,470 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) [2022-11-18 19:53:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2022-11-18 19:53:19,471 INFO L240 hiAutomatonCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-11-18 19:53:19,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:19,472 INFO L428 stractBuchiCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-11-18 19:53:19,474 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:53:19,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 191 transitions. [2022-11-18 19:53:19,476 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2022-11-18 19:53:19,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:19,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:19,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,478 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,479 INFO L748 eck$LassoCheckResult]: Stem: 1548#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1549#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; 1573#L111 assume !false; 1675#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1674#L36 assume 8466 == main_~s__state~0#1; 1643#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1641#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1554#L111 [2022-11-18 19:53:19,479 INFO L750 eck$LassoCheckResult]: Loop: 1554#L111 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); 1586#L57 assume !(8640 == main_~s__state~0#1); 1550#L61 assume 8656 == main_~s__state~0#1; 1551#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1560#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1562#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1568#L111 assume !false; 1618#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1619#L36 assume 8466 == main_~s__state~0#1; 1576#L37 assume !(0 == main_~blastFlag~0#1); 1577#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1554#L111 [2022-11-18 19:53:19,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2022-11-18 19:53:19,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773474281] [2022-11-18 19:53:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:19,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2022-11-18 19:53:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136202546] [2022-11-18 19:53:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:19,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:19,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136202546] [2022-11-18 19:53:19,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136202546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:19,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:19,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:19,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415646934] [2022-11-18 19:53:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:19,535 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:53:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:19,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:19,536 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) [2022-11-18 19:53:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:19,559 INFO L93 Difference]: Finished difference Result 182 states and 254 transitions. [2022-11-18 19:53:19,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 254 transitions. [2022-11-18 19:53:19,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-11-18 19:53:19,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 254 transitions. [2022-11-18 19:53:19,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2022-11-18 19:53:19,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-11-18 19:53:19,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2022-11-18 19:53:19,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:19,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-11-18 19:53:19,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2022-11-18 19:53:19,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-18 19:53:19,567 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) [2022-11-18 19:53:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2022-11-18 19:53:19,568 INFO L240 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-11-18 19:53:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:19,569 INFO L428 stractBuchiCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-11-18 19:53:19,570 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 19:53:19,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 254 transitions. [2022-11-18 19:53:19,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-11-18 19:53:19,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:19,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:19,572 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,572 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,572 INFO L748 eck$LassoCheckResult]: Stem: 1870#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1871#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1876#L111 assume !false; 1877#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1993#L36 assume 8466 == main_~s__state~0#1; 1990#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1987#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1938#L111 [2022-11-18 19:53:19,573 INFO L750 eck$LassoCheckResult]: Loop: 1938#L111 assume !false; 1955#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1953#L36 assume !(8466 == main_~s__state~0#1); 1950#L41 assume !(8512 == main_~s__state~0#1); 1947#L57 assume !(8640 == main_~s__state~0#1); 1872#L61 assume 8656 == main_~s__state~0#1; 1873#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1879#L100-1 assume !(4 == main_~blastFlag~0#1); 1880#L107 assume !(5 == main_~blastFlag~0#1); 1917#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1918#L111 assume !false; 1976#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1977#L36 assume 8466 == main_~s__state~0#1; 1963#L37 assume !(0 == main_~blastFlag~0#1); 1960#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1938#L111 [2022-11-18 19:53:19,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2022-11-18 19:53:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448416815] [2022-11-18 19:53:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2022-11-18 19:53:19,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008452638] [2022-11-18 19:53:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:19,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:19,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008452638] [2022-11-18 19:53:19,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008452638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:19,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:19,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016106437] [2022-11-18 19:53:19,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:19,610 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:53:19,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:19,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:19,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:19,611 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) [2022-11-18 19:53:19,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:19,647 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2022-11-18 19:53:19,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 202 transitions. [2022-11-18 19:53:19,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-11-18 19:53:19,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 111 states and 141 transitions. [2022-11-18 19:53:19,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2022-11-18 19:53:19,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-18 19:53:19,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 141 transitions. [2022-11-18 19:53:19,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:19,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 141 transitions. [2022-11-18 19:53:19,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 141 transitions. [2022-11-18 19:53:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2022-11-18 19:53:19,653 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) [2022-11-18 19:53:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2022-11-18 19:53:19,654 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-11-18 19:53:19,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:19,655 INFO L428 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-11-18 19:53:19,655 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 19:53:19,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2022-11-18 19:53:19,656 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-11-18 19:53:19,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:19,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:19,657 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,657 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,657 INFO L748 eck$LassoCheckResult]: Stem: 2211#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2212#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; 2229#L111 assume !false; 2296#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2231#L36 assume 8466 == main_~s__state~0#1; 2232#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2263#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2250#L111 [2022-11-18 19:53:19,657 INFO L750 eck$LassoCheckResult]: Loop: 2250#L111 assume !false; 2304#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2301#L36 assume !(8466 == main_~s__state~0#1); 2299#L41 assume !(8512 == main_~s__state~0#1); 2248#L57 assume !(8640 == main_~s__state~0#1); 2217#L61 assume 8656 == main_~s__state~0#1; 2218#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2223#L100-1 assume !(4 == main_~blastFlag~0#1); 2224#L107 assume !(5 == main_~blastFlag~0#1); 2239#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2219#L111 assume !false; 2213#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2214#L36 assume !(8466 == main_~s__state~0#1); 2230#L41 assume !(8512 == main_~s__state~0#1); 2240#L57 assume 8640 == main_~s__state~0#1; 2298#L58 assume !(3 == main_~blastFlag~0#1); 2249#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2250#L111 [2022-11-18 19:53:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2022-11-18 19:53:19,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139577635] [2022-11-18 19:53:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,679 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2022-11-18 19:53:19,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266730066] [2022-11-18 19:53:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:19,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:19,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266730066] [2022-11-18 19:53:19,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266730066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:19,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:19,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:19,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525346382] [2022-11-18 19:53:19,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:19,717 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:53:19,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:19,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:19,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:19,717 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) [2022-11-18 19:53:19,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:19,739 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2022-11-18 19:53:19,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2022-11-18 19:53:19,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-11-18 19:53:19,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2022-11-18 19:53:19,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2022-11-18 19:53:19,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-11-18 19:53:19,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2022-11-18 19:53:19,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:19,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-11-18 19:53:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2022-11-18 19:53:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-18 19:53:19,744 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) [2022-11-18 19:53:19,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2022-11-18 19:53:19,744 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-11-18 19:53:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:19,745 INFO L428 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-11-18 19:53:19,746 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 19:53:19,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2022-11-18 19:53:19,746 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-11-18 19:53:19,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:19,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:19,748 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,749 INFO L748 eck$LassoCheckResult]: Stem: 2438#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2446#L111 assume !false; 2442#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2443#L36 assume 8466 == main_~s__state~0#1; 2459#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2490#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2476#L111 [2022-11-18 19:53:19,750 INFO L750 eck$LassoCheckResult]: Loop: 2476#L111 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); 2458#L41 assume !(8512 == main_~s__state~0#1); 2468#L57 assume !(8640 == main_~s__state~0#1); 2474#L61 assume 8656 == main_~s__state~0#1; 2505#L62 assume !(2 == main_~blastFlag~0#1); 2452#L100-1 assume !(4 == main_~blastFlag~0#1); 2453#L107 assume !(5 == main_~blastFlag~0#1); 2467#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2473#L111 assume !false; 2533#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2531#L36 assume !(8466 == main_~s__state~0#1); 2508#L41 assume !(8512 == main_~s__state~0#1); 2506#L57 assume 8640 == main_~s__state~0#1; 2507#L58 assume !(3 == main_~blastFlag~0#1); 2475#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2476#L111 [2022-11-18 19:53:19,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2022-11-18 19:53:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286816700] [2022-11-18 19:53:19,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,771 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2022-11-18 19:53:19,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105410553] [2022-11-18 19:53:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:19,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:19,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105410553] [2022-11-18 19:53:19,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105410553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:19,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:19,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:53:19,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944352360] [2022-11-18 19:53:19,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:19,810 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:53:19,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:19,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:19,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:19,812 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) [2022-11-18 19:53:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:19,827 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2022-11-18 19:53:19,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2022-11-18 19:53:19,828 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-11-18 19:53:19,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2022-11-18 19:53:19,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-11-18 19:53:19,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-11-18 19:53:19,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2022-11-18 19:53:19,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:19,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2022-11-18 19:53:19,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2022-11-18 19:53:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2022-11-18 19:53:19,832 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) [2022-11-18 19:53:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2022-11-18 19:53:19,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-11-18 19:53:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:19,835 INFO L428 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-11-18 19:53:19,835 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-18 19:53:19,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2022-11-18 19:53:19,836 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-11-18 19:53:19,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:19,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:19,837 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,837 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:19,837 INFO L748 eck$LassoCheckResult]: Stem: 2702#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2703#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; 2722#L111 assume !false; 2793#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2792#L36 assume 8466 == main_~s__state~0#1; 2760#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2757#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2710#L111 [2022-11-18 19:53:19,838 INFO L750 eck$LassoCheckResult]: Loop: 2710#L111 assume !false; 2704#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2705#L36 assume !(8466 == main_~s__state~0#1); 2723#L41 assume !(8512 == main_~s__state~0#1); 2733#L57 assume !(8640 == main_~s__state~0#1); 2740#L61 assume 8656 == main_~s__state~0#1; 2805#L62 assume !(2 == main_~blastFlag~0#1); 2716#L100-1 assume !(4 == main_~blastFlag~0#1); 2717#L107 assume !(5 == main_~blastFlag~0#1); 2739#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2710#L111 [2022-11-18 19:53:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2022-11-18 19:53:19,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53241167] [2022-11-18 19:53:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:19,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2022-11-18 19:53:19,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21869276] [2022-11-18 19:53:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:19,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,872 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2022-11-18 19:53:19,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:19,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006358540] [2022-11-18 19:53:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:19,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:19,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006358540] [2022-11-18 19:53:19,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006358540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:19,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:19,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476992608] [2022-11-18 19:53:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:19,951 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:19,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:19,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:19,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:19,951 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:53:19,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:19,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:19,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:19,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-11-18 19:53:19,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:19,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:19,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:19,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:19,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:20,039 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:20,039 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:53:20,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:20,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:20,043 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:20,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 19:53:20,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:53:20,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:20,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-18 19:53:20,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:20,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:20,068 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:20,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 19:53:20,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:53:20,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:53:20,092 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:53:20,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:20,100 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:53:20,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:53:20,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:53:20,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:53:20,100 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:53:20,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:20,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:53:20,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:53:20,101 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-11-18 19:53:20,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:53:20,101 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:53:20,101 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:20,107 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:20,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:53:20,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:53:20,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:53:20,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:20,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:20,188 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:20,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:53:20,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:53:20,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:53:20,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:53:20,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:53:20,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:53:20,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:53:20,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:53:20,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 19:53:20,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:53:20,224 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 19:53:20,224 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:53:20,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:53:20,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:20,225 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:20,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:53:20,232 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:53:20,232 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:53:20,232 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 [] [2022-11-18 19:53:20,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 19:53:20,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:20,241 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:53:20,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:20,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:53:20,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:20,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:53:20,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:20,305 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 19:53:20,305 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) [2022-11-18 19:53:20,332 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. [2022-11-18 19:53:20,333 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 [2022-11-18 19:53:20,334 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) [2022-11-18 19:53:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-11-18 19:53:20,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2022-11-18 19:53:20,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:20,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2022-11-18 19:53:20,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:20,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2022-11-18 19:53:20,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:53:20,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2022-11-18 19:53:20,336 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-11-18 19:53:20,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2022-11-18 19:53:20,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-18 19:53:20,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-11-18 19:53:20,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2022-11-18 19:53:20,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:20,338 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-11-18 19:53:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2022-11-18 19:53:20,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-18 19:53:20,340 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) [2022-11-18 19:53:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2022-11-18 19:53:20,341 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-11-18 19:53:20,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:20,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:20,341 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) [2022-11-18 19:53:20,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:20,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:20,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:20,367 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2022-11-18 19:53:20,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2022-11-18 19:53:20,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-11-18 19:53:20,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2022-11-18 19:53:20,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-18 19:53:20,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-18 19:53:20,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2022-11-18 19:53:20,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:53:20,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-18 19:53:20,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2022-11-18 19:53:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-18 19:53:20,371 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) [2022-11-18 19:53:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2022-11-18 19:53:20,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-18 19:53:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:20,373 INFO L428 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-18 19:53:20,373 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-18 19:53:20,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2022-11-18 19:53:20,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-11-18 19:53:20,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:53:20,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:53:20,374 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:20,374 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:20,375 INFO L748 eck$LassoCheckResult]: Stem: 3239#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3240#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; 3243#L111 assume !false; 3235#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3236#L36 assume 8466 == main_~s__state~0#1; 3260#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3261#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3267#L111 assume !false; 3245#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3289#L36 assume !(8466 == main_~s__state~0#1); 3284#L41 assume 8512 == main_~s__state~0#1; 3258#L42 [2022-11-18 19:53:20,375 INFO L750 eck$LassoCheckResult]: Loop: 3258#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3250#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3251#L111 assume !false; 3293#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3292#L36 assume 8466 == main_~s__state~0#1; 3287#L37 assume !(0 == main_~blastFlag~0#1); 3291#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3290#L111 assume !false; 3288#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3286#L36 assume !(8466 == main_~s__state~0#1); 3285#L41 assume 8512 == main_~s__state~0#1; 3258#L42 [2022-11-18 19:53:20,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,375 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2022-11-18 19:53:20,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:20,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10219344] [2022-11-18 19:53:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:20,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2022-11-18 19:53:20,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:20,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995249352] [2022-11-18 19:53:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:20,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,420 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2022-11-18 19:53:20,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:20,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768276468] [2022-11-18 19:53:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:20,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:20,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:53:20 BoogieIcfgContainer [2022-11-18 19:53:20,715 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:53:20,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:53:20,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:53:20,716 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:53:20,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:15" (3/4) ... [2022-11-18 19:53:20,719 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:53:20,753 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:53:20,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:53:20,754 INFO L158 Benchmark]: Toolchain (without parser) took 5911.26ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 107.7MB in the beginning and 127.9MB in the end (delta: -20.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,754 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:53:20,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.34ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 114.3MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.91ms. Allocated memory is still 138.4MB. Free memory was 114.3MB in the beginning and 112.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,755 INFO L158 Benchmark]: Boogie Preprocessor took 19.14ms. Allocated memory is still 138.4MB. Free memory was 112.9MB in the beginning and 111.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,756 INFO L158 Benchmark]: RCFGBuilder took 345.60ms. Allocated memory is still 138.4MB. Free memory was 111.6MB in the beginning and 101.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,756 INFO L158 Benchmark]: BuchiAutomizer took 5166.34ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 100.7MB in the beginning and 130.0MB in the end (delta: -29.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,756 INFO L158 Benchmark]: Witness Printer took 37.47ms. Allocated memory is still 182.5MB. Free memory was 130.0MB in the beginning and 127.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:20,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.34ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 114.3MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.91ms. Allocated memory is still 138.4MB. Free memory was 114.3MB in the beginning and 112.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.14ms. Allocated memory is still 138.4MB. Free memory was 112.9MB in the beginning and 111.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.60ms. Allocated memory is still 138.4MB. Free memory was 111.6MB in the beginning and 101.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5166.34ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 100.7MB in the beginning and 130.0MB in the end (delta: -29.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Witness Printer took 37.47ms. Allocated memory is still 182.5MB. Free memory was 130.0MB in the beginning and 127.9MB 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 5.0s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. 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, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 548 SdHoareTripleChecker+Invalid, 0.3s 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: 38ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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! [2022-11-18 19:53:20,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a3ab1-f5bd-4671-b54c-4f76597b8106/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)