./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 0e0057cc 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_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/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_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:53:15,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:53:15,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 05:53:15,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:53:15,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:53:15,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:53:15,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:53:15,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:53:15,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:53:15,971 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:53:15,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:53:15,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:53:15,973 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:53:15,974 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 05:53:15,974 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 05:53:15,975 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 05:53:15,975 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 05:53:15,976 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 05:53:15,976 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 05:53:15,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:53:15,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 05:53:15,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:53:15,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:53:15,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:53:15,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:53:15,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 05:53:15,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 05:53:15,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 05:53:15,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:53:15,981 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:53:15,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:53:15,981 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 05:53:15,982 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:53:15,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:53:15,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:53:15,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:53:15,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:53:15,983 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 05:53:15,983 INFO L153 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_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2023-11-29 05:53:16,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:53:16,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:53:16,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:53:16,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:53:16,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:53:16,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2023-11-29 05:53:19,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:53:19,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:53:19,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2023-11-29 05:53:19,215 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/data/962b9c75a/042c20dd0e0443bdb270832f00cc3153/FLAG8032ed61e [2023-11-29 05:53:19,230 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/data/962b9c75a/042c20dd0e0443bdb270832f00cc3153 [2023-11-29 05:53:19,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:53:19,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:53:19,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:19,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:53:19,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:53:19,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c743e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19, skipping insertion in model container [2023-11-29 05:53:19,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,266 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:53:19,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:19,406 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:53:19,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:19,433 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:53:19,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19 WrapperNode [2023-11-29 05:53:19,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:19,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:19,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:53:19,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:53:19,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,460 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2023-11-29 05:53:19,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:19,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:53:19,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:53:19,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:53:19,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,481 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:53:19,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:53:19,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:53:19,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:53:19,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:53:19,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (1/1) ... [2023-11-29 05:53:19,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:19,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:19,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:19,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 05:53:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:53:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:53:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:53:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:53:19,615 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:53:19,616 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:53:19,737 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:53:19,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:53:19,746 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:53:19,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:19 BoogieIcfgContainer [2023-11-29 05:53:19,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:53:19,748 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 05:53:19,748 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 05:53:19,751 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 05:53:19,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:53:19,752 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 05:53:19" (1/3) ... [2023-11-29 05:53:19,753 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ceed415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:53:19, skipping insertion in model container [2023-11-29 05:53:19,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:53:19,753 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:19" (2/3) ... [2023-11-29 05:53:19,754 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ceed415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:53:19, skipping insertion in model container [2023-11-29 05:53:19,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:53:19,754 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:19" (3/3) ... [2023-11-29 05:53:19,755 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2023-11-29 05:53:19,798 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 05:53:19,798 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 05:53:19,798 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 05:53:19,798 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 05:53:19,799 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 05:53:19,799 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 05:53:19,799 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 05:53:19,799 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 05:53:19,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 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) [2023-11-29 05:53:19,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-11-29 05:53:19,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:19,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:19,825 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:53:19,825 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-29 05:53:19,825 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 05:53:19,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 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) [2023-11-29 05:53:19,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-11-29 05:53:19,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:19,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:19,828 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:53:19,828 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-29 05:53:19,835 INFO L748 eck$LassoCheckResult]: Stem: 20#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6#$Ultimate##5true [2023-11-29 05:53:19,836 INFO L750 eck$LassoCheckResult]: Loop: 6#$Ultimate##5true assume !false; 3#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 11#L36true assume 8466 == main_~s__state~0#1; 7#$Ultimate##17true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#$Ultimate##5true [2023-11-29 05:53:19,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:19,842 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 05:53:19,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:19,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469375765] [2023-11-29 05:53:19,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:19,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:19,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:19,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:19,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2023-11-29 05:53:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:19,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991887121] [2023-11-29 05:53:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:19,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:19,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:19,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:19,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2023-11-29 05:53:19,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:19,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010750398] [2023-11-29 05:53:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:19,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:20,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:20,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:20,104 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:20,105 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:20,105 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:20,105 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:20,105 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:20,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,106 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:20,106 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:20,106 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2023-11-29 05:53:20,106 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:20,106 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:20,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,202 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:20,202 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:20,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 05:53:20,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:20,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:20,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:20,260 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: [] [2023-11-29 05:53:20,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:20,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 05:53:20,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:20,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:20,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 05:53:20,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,294 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 05:53:20,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:20,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:20,319 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:20,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:20,323 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:20,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:20,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:20,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:20,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:20,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:20,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:20,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2023-11-29 05:53:20,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:20,337 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:20,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,402 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:20,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:20,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,409 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 05:53:20,414 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 [2023-11-29 05:53:20,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:20,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:20,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:20,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:20,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:20,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:20,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:20,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:20,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 05:53:20,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 05:53:20,469 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 [2023-11-29 05:53:20,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:20,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:20,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:20,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:20,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:20,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:20,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:20,485 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:20,489 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:53:20,489 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:53:20,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 05:53:20,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:20,498 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:20,498 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:20,499 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 [] [2023-11-29 05:53:20,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 05:53:20,506 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:20,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:20,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:20,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:20,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:20,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:20,639 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 [2023-11-29 05:53:20,641 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 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) [2023-11-29 05:53:20,704 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 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 51 states and 83 transitions. Complement of second has 6 states. [2023-11-29 05:53:20,707 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 [2023-11-29 05:53:20,712 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) [2023-11-29 05:53:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2023-11-29 05:53:20,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 2 letters. Loop has 5 letters. [2023-11-29 05:53:20,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:20,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 7 letters. Loop has 5 letters. [2023-11-29 05:53:20,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:20,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 2 letters. Loop has 10 letters. [2023-11-29 05:53:20,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:20,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 83 transitions. [2023-11-29 05:53:20,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-11-29 05:53:20,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 59 transitions. [2023-11-29 05:53:20,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-29 05:53:20,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-29 05:53:20,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2023-11-29 05:53:20,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:20,729 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2023-11-29 05:53:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2023-11-29 05:53:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2023-11-29 05:53:20,756 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) [2023-11-29 05:53:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2023-11-29 05:53:20,758 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2023-11-29 05:53:20,758 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2023-11-29 05:53:20,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 05:53:20,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2023-11-29 05:53:20,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-11-29 05:53:20,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:20,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:20,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 05:53:20,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-29 05:53:20,762 INFO L748 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 147#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;havoc main_#t~nondet4#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; 148#$Ultimate##5 assume !false; 120#L30 [2023-11-29 05:53:20,762 INFO L750 eck$LassoCheckResult]: Loop: 120#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 121#L36 assume 8466 == main_~s__state~0#1; 134#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 135#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 132#$Ultimate##5 assume !false; 120#L30 [2023-11-29 05:53:20,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:20,762 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 05:53:20,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:20,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347520900] [2023-11-29 05:53:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:20,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:20,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:20,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:20,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:20,778 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2023-11-29 05:53:20,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:20,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760130001] [2023-11-29 05:53:20,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:20,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:20,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:20,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:20,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:20,790 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2023-11-29 05:53:20,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:20,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989436694] [2023-11-29 05:53:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:20,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:20,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:20,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989436694] [2023-11-29 05:53:20,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989436694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:20,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120781089] [2023-11-29 05:53:20,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:20,891 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:20,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:20,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:20,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:20,892 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:20,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:20,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:20,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2023-11-29 05:53:20,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:20,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:20,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:20,958 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:20,958 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:20,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,960 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 05:53:20,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:20,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:20,987 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:20,987 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: [] [2023-11-29 05:53:20,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 05:53:20,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:20,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:20,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:20,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 05:53:20,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:20,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,006 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:21,006 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: [] [2023-11-29 05:53:21,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 05:53:21,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,014 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 05:53:21,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:21,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 05:53:21,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 05:53:21,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:21,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:21,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 05:53:21,062 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:21,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:21,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:21,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:21,063 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:21,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:21,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:21,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2023-11-29 05:53:21,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:21,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:21,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:21,122 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:21,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,124 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 05:53:21,127 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 [2023-11-29 05:53:21,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:21,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:21,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:21,137 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-29 05:53:21,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:21,139 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-29 05:53:21,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:21,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:21,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 05:53:21,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,151 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 05:53:21,157 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 [2023-11-29 05:53:21,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:21,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:21,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:21,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:21,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:21,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:21,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:21,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:21,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 05:53:21,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,175 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 05:53:21,177 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 [2023-11-29 05:53:21,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:21,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:21,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:21,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:21,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:21,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:21,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:21,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:21,194 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:53:21,194 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:53:21,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,196 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 05:53:21,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:21,198 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:21,198 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:21,198 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 [] [2023-11-29 05:53:21,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 05:53:21,202 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:21,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:21,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:21,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:21,265 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 [2023-11-29 05:53:21,265 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) [2023-11-29 05:53:21,318 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. [2023-11-29 05:53:21,318 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 [2023-11-29 05:53:21,319 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) [2023-11-29 05:53:21,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2023-11-29 05:53:21,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 5 letters. [2023-11-29 05:53:21,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:21,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 5 letters. [2023-11-29 05:53:21,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:21,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 10 letters. [2023-11-29 05:53:21,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:21,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 155 transitions. [2023-11-29 05:53:21,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-11-29 05:53:21,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 77 states and 121 transitions. [2023-11-29 05:53:21,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2023-11-29 05:53:21,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-11-29 05:53:21,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 121 transitions. [2023-11-29 05:53:21,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:21,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 121 transitions. [2023-11-29 05:53:21,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 121 transitions. [2023-11-29 05:53:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2023-11-29 05:53:21,333 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) [2023-11-29 05:53:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2023-11-29 05:53:21,335 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2023-11-29 05:53:21,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:21,338 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) [2023-11-29 05:53:21,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:21,367 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2023-11-29 05:53:21,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2023-11-29 05:53:21,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2023-11-29 05:53:21,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2023-11-29 05:53:21,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2023-11-29 05:53:21,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2023-11-29 05:53:21,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2023-11-29 05:53:21,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:21,372 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2023-11-29 05:53:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2023-11-29 05:53:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-11-29 05:53:21,378 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) [2023-11-29 05:53:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2023-11-29 05:53:21,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2023-11-29 05:53:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:21,381 INFO L428 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2023-11-29 05:53:21,381 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 05:53:21,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2023-11-29 05:53:21,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2023-11-29 05:53:21,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:21,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:21,383 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 05:53:21,383 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-29 05:53:21,384 INFO L748 eck$LassoCheckResult]: Stem: 495#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 480#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;havoc main_#t~nondet4#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; 481#$Ultimate##5 assume !false; 454#L30 [2023-11-29 05:53:21,384 INFO L750 eck$LassoCheckResult]: Loop: 454#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 455#L36 assume !(8466 == main_~s__state~0#1); 477#L41 assume 8512 == main_~s__state~0#1; 462#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 463#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 466#$Ultimate##5 assume !false; 454#L30 [2023-11-29 05:53:21,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,384 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2023-11-29 05:53:21,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513958700] [2023-11-29 05:53:21,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:21,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2023-11-29 05:53:21,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722664676] [2023-11-29 05:53:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:21,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,406 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2023-11-29 05:53:21,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368456949] [2023-11-29 05:53:21,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:21,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:21,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368456949] [2023-11-29 05:53:21,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368456949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:21,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:21,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:21,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363531966] [2023-11-29 05:53:21,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:21,464 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:21,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:21,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:21,464 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:21,464 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:21,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:21,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:21,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2023-11-29 05:53:21,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:21,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:21,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,508 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:21,508 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:21,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,509 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 05:53:21,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:21,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,532 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:21,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp___1~0#1=4} Honda state: {ULTIMATE.start_main_~tmp___1~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:21,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 05:53:21,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,537 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 05:53:21,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:21,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,551 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:21,551 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:21,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 05:53:21,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,556 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 05:53:21,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:21,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 05:53:21,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,573 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 05:53:21,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:21,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:21,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:21,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 05:53:21,593 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:21,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:21,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:21,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:21,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:21,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:21,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:21,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2023-11-29 05:53:21,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:21,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:21,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:21,647 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:21,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,649 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 05:53:21,654 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 [2023-11-29 05:53:21,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:21,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:21,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:21,667 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-29 05:53:21,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:21,668 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-29 05:53:21,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:21,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:21,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 05:53:21,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,675 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 05:53:21,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 05:53:21,694 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 [2023-11-29 05:53:21,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:21,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:21,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:21,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:21,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:21,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:21,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:21,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:21,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:21,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 05:53:21,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,715 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 05:53:21,717 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 [2023-11-29 05:53:21,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:21,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:21,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:21,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:21,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:21,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:21,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:21,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:21,734 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:53:21,734 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 05:53:21,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:21,736 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:21,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 05:53:21,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:21,738 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:21,738 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:21,738 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 [] [2023-11-29 05:53:21,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 05:53:21,741 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:21,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:21,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:21,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:21,802 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 [2023-11-29 05:53:21,802 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) [2023-11-29 05:53:21,859 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. [2023-11-29 05:53:21,860 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 [2023-11-29 05:53:21,860 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) [2023-11-29 05:53:21,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2023-11-29 05:53:21,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-29 05:53:21,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:21,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-29 05:53:21,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:21,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 12 letters. [2023-11-29 05:53:21,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:21,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 232 transitions. [2023-11-29 05:53:21,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2023-11-29 05:53:21,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 141 states and 196 transitions. [2023-11-29 05:53:21,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2023-11-29 05:53:21,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-11-29 05:53:21,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 196 transitions. [2023-11-29 05:53:21,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:21,868 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 196 transitions. [2023-11-29 05:53:21,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 196 transitions. [2023-11-29 05:53:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2023-11-29 05:53:21,874 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) [2023-11-29 05:53:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2023-11-29 05:53:21,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 148 transitions. [2023-11-29 05:53:21,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:21,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:21,876 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) [2023-11-29 05:53:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:21,894 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions. [2023-11-29 05:53:21,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 94 transitions. [2023-11-29 05:53:21,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2023-11-29 05:53:21,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 61 states and 90 transitions. [2023-11-29 05:53:21,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2023-11-29 05:53:21,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-29 05:53:21,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2023-11-29 05:53:21,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:21,896 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2023-11-29 05:53:21,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2023-11-29 05:53:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-29 05:53:21,900 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) [2023-11-29 05:53:21,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2023-11-29 05:53:21,900 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2023-11-29 05:53:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:21,901 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2023-11-29 05:53:21,901 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 05:53:21,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2023-11-29 05:53:21,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2023-11-29 05:53:21,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:21,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:21,903 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:21,903 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-29 05:53:21,903 INFO L748 eck$LassoCheckResult]: Stem: 975#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 966#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 967#$Ultimate##5 assume !false; 937#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 938#L36 assume 8466 == main_~s__state~0#1; 965#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 981#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 977#$Ultimate##5 assume !false; 976#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 963#L36 assume !(8466 == main_~s__state~0#1); 964#L41 [2023-11-29 05:53:21,904 INFO L750 eck$LassoCheckResult]: Loop: 964#L41 assume 8512 == main_~s__state~0#1; 939#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 940#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 961#$Ultimate##5 assume !false; 995#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 994#L36 assume !(8466 == main_~s__state~0#1); 964#L41 [2023-11-29 05:53:21,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2023-11-29 05:53:21,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782032064] [2023-11-29 05:53:21,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:21,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2023-11-29 05:53:21,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506577111] [2023-11-29 05:53:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:21,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:21,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2023-11-29 05:53:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:21,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601407637] [2023-11-29 05:53:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:21,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:21,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601407637] [2023-11-29 05:53:21,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601407637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:21,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:21,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:21,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156775817] [2023-11-29 05:53:21,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:21,987 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:21,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:21,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:21,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:21,988 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:21,988 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:21,988 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:21,988 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:21,988 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2023-11-29 05:53:21,988 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:21,988 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:21,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:21,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,033 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:22,033 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:22,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,036 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 05:53:22,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:22,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:22,060 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:22,060 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp___1~0#1=0} Honda state: {ULTIMATE.start_main_~tmp___1~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:22,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 05:53:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,070 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 05:53:22,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:22,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:22,088 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:53:22,088 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:53:22,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:22,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,093 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 05:53:22,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:22,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:22,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:22,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,126 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 05:53:22,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:22,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:22,142 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:22,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:22,145 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:22,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:22,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:22,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:22,146 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:22,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:22,146 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:22,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2023-11-29 05:53:22,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:22,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:22,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,148 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:22,177 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:22,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,178 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 05:53:22,181 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 [2023-11-29 05:53:22,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:22,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:22,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:22,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:22,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:22,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:22,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:22,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:22,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-29 05:53:22,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,197 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 05:53:22,199 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 [2023-11-29 05:53:22,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:22,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:22,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:22,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:22,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:22,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:22,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:22,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:53:22,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-29 05:53:22,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,216 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 05:53:22,218 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 [2023-11-29 05:53:22,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:22,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:22,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:22,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:22,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:22,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:22,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:22,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:22,234 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:53:22,234 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:53:22,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,236 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 05:53:22,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:22,237 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:22,238 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:22,238 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 [] [2023-11-29 05:53:22,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-29 05:53:22,241 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:22,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:22,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:22,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,322 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 [2023-11-29 05:53:22,322 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) [2023-11-29 05:53:22,387 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. [2023-11-29 05:53:22,388 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 [2023-11-29 05:53:22,389 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) [2023-11-29 05:53:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2023-11-29 05:53:22,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 6 letters. [2023-11-29 05:53:22,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:22,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-29 05:53:22,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:22,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 12 letters. [2023-11-29 05:53:22,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:22,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 281 transitions. [2023-11-29 05:53:22,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-29 05:53:22,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 163 states and 245 transitions. [2023-11-29 05:53:22,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2023-11-29 05:53:22,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-11-29 05:53:22,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 245 transitions. [2023-11-29 05:53:22,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:22,396 INFO L218 hiAutomatonCegarLoop]: Abstraction has 163 states and 245 transitions. [2023-11-29 05:53:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 245 transitions. [2023-11-29 05:53:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 125. [2023-11-29 05:53:22,403 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) [2023-11-29 05:53:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2023-11-29 05:53:22,404 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2023-11-29 05:53:22,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:22,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:22,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:22,405 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) [2023-11-29 05:53:22,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,431 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2023-11-29 05:53:22,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 223 transitions. [2023-11-29 05:53:22,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2023-11-29 05:53:22,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 211 transitions. [2023-11-29 05:53:22,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2023-11-29 05:53:22,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2023-11-29 05:53:22,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 211 transitions. [2023-11-29 05:53:22,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:22,435 INFO L218 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2023-11-29 05:53:22,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 211 transitions. [2023-11-29 05:53:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2023-11-29 05:53:22,441 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) [2023-11-29 05:53:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2023-11-29 05:53:22,442 INFO L240 hiAutomatonCegarLoop]: Abstraction has 134 states and 191 transitions. [2023-11-29 05:53:22,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:22,443 INFO L428 stractBuchiCegarLoop]: Abstraction has 134 states and 191 transitions. [2023-11-29 05:53:22,443 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 05:53:22,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 191 transitions. [2023-11-29 05:53:22,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2023-11-29 05:53:22,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:22,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:22,445 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,445 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,445 INFO L748 eck$LassoCheckResult]: Stem: 1585#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1574#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;havoc main_#t~nondet4#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; 1575#$Ultimate##5 assume !false; 1677#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1676#L36 assume 8466 == main_~s__state~0#1; 1641#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1639#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1557#$Ultimate##5 [2023-11-29 05:53:22,445 INFO L750 eck$LassoCheckResult]: Loop: 1557#$Ultimate##5 assume !false; 1545#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1546#L36 assume !(8466 == main_~s__state~0#1); 1572#L41 assume !(8512 == main_~s__state~0#1); 1587#L57 assume !(8640 == main_~s__state~0#1); 1553#L61 assume 8656 == main_~s__state~0#1; 1554#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1564#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1566#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1582#$Ultimate##5 assume !false; 1622#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1623#L36 assume 8466 == main_~s__state~0#1; 1559#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1560#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1557#$Ultimate##5 [2023-11-29 05:53:22,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2023-11-29 05:53:22,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047456729] [2023-11-29 05:53:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:22,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2023-11-29 05:53:22,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655430613] [2023-11-29 05:53:22,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:22,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655430613] [2023-11-29 05:53:22,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655430613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:22,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:22,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:22,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127415033] [2023-11-29 05:53:22,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:22,482 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:53:22,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:22,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:22,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:22,483 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) [2023-11-29 05:53:22,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,505 INFO L93 Difference]: Finished difference Result 182 states and 254 transitions. [2023-11-29 05:53:22,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 254 transitions. [2023-11-29 05:53:22,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2023-11-29 05:53:22,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 254 transitions. [2023-11-29 05:53:22,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2023-11-29 05:53:22,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2023-11-29 05:53:22,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2023-11-29 05:53:22,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:22,510 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2023-11-29 05:53:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2023-11-29 05:53:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-29 05:53:22,516 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) [2023-11-29 05:53:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2023-11-29 05:53:22,517 INFO L240 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2023-11-29 05:53:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:22,518 INFO L428 stractBuchiCegarLoop]: Abstraction has 182 states and 254 transitions. [2023-11-29 05:53:22,518 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 05:53:22,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 254 transitions. [2023-11-29 05:53:22,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2023-11-29 05:53:22,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:22,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:22,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,521 INFO L748 eck$LassoCheckResult]: Stem: 1916#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1896#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#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; 1897#$Ultimate##5 assume !false; 2002#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2003#L36 assume 8466 == main_~s__state~0#1; 1966#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1963#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1879#$Ultimate##5 [2023-11-29 05:53:22,521 INFO L750 eck$LassoCheckResult]: Loop: 1879#$Ultimate##5 assume !false; 1880#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1968#L36 assume !(8466 == main_~s__state~0#1); 1946#L41 assume !(8512 == main_~s__state~0#1); 1947#L57 assume !(8640 == main_~s__state~0#1); 1871#L61 assume 8656 == main_~s__state~0#1; 1872#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1887#L100-1 assume !(4 == main_~blastFlag~0#1); 1888#L107 assume !(5 == main_~blastFlag~0#1); 1917#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1892#$Ultimate##5 assume !false; 1997#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1995#L36 assume 8466 == main_~s__state~0#1; 1882#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1883#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1879#$Ultimate##5 [2023-11-29 05:53:22,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2023-11-29 05:53:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583153873] [2023-11-29 05:53:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:22,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,533 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2023-11-29 05:53:22,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429464659] [2023-11-29 05:53:22,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:22,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429464659] [2023-11-29 05:53:22,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429464659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:22,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:22,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:22,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393661378] [2023-11-29 05:53:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:22,557 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:53:22,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:22,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:22,558 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) [2023-11-29 05:53:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,580 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2023-11-29 05:53:22,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 202 transitions. [2023-11-29 05:53:22,582 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2023-11-29 05:53:22,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 111 states and 141 transitions. [2023-11-29 05:53:22,583 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2023-11-29 05:53:22,583 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-29 05:53:22,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 141 transitions. [2023-11-29 05:53:22,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:22,584 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 141 transitions. [2023-11-29 05:53:22,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 141 transitions. [2023-11-29 05:53:22,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2023-11-29 05:53:22,586 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) [2023-11-29 05:53:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2023-11-29 05:53:22,587 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2023-11-29 05:53:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:22,588 INFO L428 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2023-11-29 05:53:22,588 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 05:53:22,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2023-11-29 05:53:22,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2023-11-29 05:53:22,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:22,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:22,590 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,590 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,590 INFO L748 eck$LassoCheckResult]: Stem: 2249#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2234#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;havoc main_#t~nondet4#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; 2222#$Ultimate##5 assume !false; 2223#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2308#L36 assume 8466 == main_~s__state~0#1; 2271#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2268#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2267#$Ultimate##5 [2023-11-29 05:53:22,590 INFO L750 eck$LassoCheckResult]: Loop: 2267#$Ultimate##5 assume !false; 2285#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2282#L36 assume !(8466 == main_~s__state~0#1); 2279#L41 assume !(8512 == main_~s__state~0#1); 2252#L57 assume !(8640 == main_~s__state~0#1); 2220#L61 assume 8656 == main_~s__state~0#1; 2221#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2231#L100-1 assume !(4 == main_~blastFlag~0#1); 2232#L107 assume !(5 == main_~blastFlag~0#1); 2250#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2251#$Ultimate##5 assume !false; 2212#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2213#L36 assume !(8466 == main_~s__state~0#1); 2235#L41 assume !(8512 == main_~s__state~0#1); 2244#L57 assume 8640 == main_~s__state~0#1; 2256#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2289#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2267#$Ultimate##5 [2023-11-29 05:53:22,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2023-11-29 05:53:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71167080] [2023-11-29 05:53:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:22,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,601 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2023-11-29 05:53:22,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794795220] [2023-11-29 05:53:22,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:22,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794795220] [2023-11-29 05:53:22,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794795220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:22,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:22,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:22,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042476561] [2023-11-29 05:53:22,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:22,623 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:53:22,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:22,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:22,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:22,623 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) [2023-11-29 05:53:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,640 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2023-11-29 05:53:22,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2023-11-29 05:53:22,642 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2023-11-29 05:53:22,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2023-11-29 05:53:22,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2023-11-29 05:53:22,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2023-11-29 05:53:22,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2023-11-29 05:53:22,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:22,643 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2023-11-29 05:53:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2023-11-29 05:53:22,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-29 05:53:22,646 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) [2023-11-29 05:53:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2023-11-29 05:53:22,646 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2023-11-29 05:53:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:22,647 INFO L428 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2023-11-29 05:53:22,648 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 05:53:22,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2023-11-29 05:53:22,648 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2023-11-29 05:53:22,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:22,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:22,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,650 INFO L748 eck$LassoCheckResult]: Stem: 2474#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2460#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;havoc main_#t~nondet4#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; 2461#$Ultimate##5 assume !false; 2441#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2442#L36 assume 8466 == main_~s__state~0#1; 2454#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2455#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2508#$Ultimate##5 [2023-11-29 05:53:22,650 INFO L750 eck$LassoCheckResult]: Loop: 2508#$Ultimate##5 assume !false; 2551#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2549#L36 assume !(8466 == main_~s__state~0#1); 2547#L41 assume !(8512 == main_~s__state~0#1); 2477#L57 assume !(8640 == main_~s__state~0#1); 2478#L61 assume 8656 == main_~s__state~0#1; 2545#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2456#L100-1 assume !(4 == main_~blastFlag~0#1); 2457#L107 assume !(5 == main_~blastFlag~0#1); 2554#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2520#$Ultimate##5 assume !false; 2552#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2550#L36 assume !(8466 == main_~s__state~0#1); 2548#L41 assume !(8512 == main_~s__state~0#1); 2485#L57 assume 8640 == main_~s__state~0#1; 2486#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2553#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2508#$Ultimate##5 [2023-11-29 05:53:22,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2023-11-29 05:53:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227372674] [2023-11-29 05:53:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:22,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2023-11-29 05:53:22,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985176752] [2023-11-29 05:53:22,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,680 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:22,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985176752] [2023-11-29 05:53:22,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985176752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:22,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:22,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:53:22,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908892507] [2023-11-29 05:53:22,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:22,681 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:53:22,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:22,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:22,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:22,682 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) [2023-11-29 05:53:22,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,690 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2023-11-29 05:53:22,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2023-11-29 05:53:22,692 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2023-11-29 05:53:22,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2023-11-29 05:53:22,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2023-11-29 05:53:22,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2023-11-29 05:53:22,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2023-11-29 05:53:22,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:22,693 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2023-11-29 05:53:22,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2023-11-29 05:53:22,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2023-11-29 05:53:22,696 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) [2023-11-29 05:53:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2023-11-29 05:53:22,696 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2023-11-29 05:53:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:22,697 INFO L428 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2023-11-29 05:53:22,698 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-29 05:53:22,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2023-11-29 05:53:22,699 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2023-11-29 05:53:22,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:22,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:22,699 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,699 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:22,700 INFO L748 eck$LassoCheckResult]: Stem: 2741#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2723#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;havoc main_#t~nondet4#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; 2724#$Ultimate##5 assume !false; 2786#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2787#L36 assume 8466 == main_~s__state~0#1; 2775#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2773#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2713#$Ultimate##5 [2023-11-29 05:53:22,700 INFO L750 eck$LassoCheckResult]: Loop: 2713#$Ultimate##5 assume !false; 2703#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2704#L36 assume !(8466 == main_~s__state~0#1); 2725#L41 assume !(8512 == main_~s__state~0#1); 2735#L57 assume !(8640 == main_~s__state~0#1); 2711#L61 assume 8656 == main_~s__state~0#1; 2712#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2719#L100-1 assume !(4 == main_~blastFlag~0#1); 2720#L107 assume !(5 == main_~blastFlag~0#1); 2742#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2713#$Ultimate##5 [2023-11-29 05:53:22,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2023-11-29 05:53:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595340546] [2023-11-29 05:53:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:22,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2023-11-29 05:53:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498258957] [2023-11-29 05:53:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:22,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:22,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,718 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2023-11-29 05:53:22,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:22,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087286447] [2023-11-29 05:53:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:22,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087286447] [2023-11-29 05:53:22,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087286447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:22,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:22,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:22,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594111489] [2023-11-29 05:53:22,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:22,785 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:22,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:22,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:22,785 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:22,785 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:53:22,785 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,785 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:22,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:22,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2023-11-29 05:53:22,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:22,786 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:22,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:22,865 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:53:22,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,866 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 05:53:22,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:53:22,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:22,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-29 05:53:22,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:22,890 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:22,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 05:53:22,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:53:22,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:53:22,908 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:53:22,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-29 05:53:22,911 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:53:22,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:53:22,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:53:22,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:53:22,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:53:22,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:22,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:53:22,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:53:22,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2023-11-29 05:53:22,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:53:22,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:53:22,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:22,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:22,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:22,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:53:23,006 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:53:23,007 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:53:23,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:23,008 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:23,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 05:53:23,013 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 [2023-11-29 05:53:23,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:53:23,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:53:23,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:53:23,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:53:23,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:53:23,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:53:23,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:53:23,027 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:53:23,031 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:53:23,031 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 05:53:23,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:53:23,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:23,033 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:23,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-29 05:53:23,041 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:53:23,041 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:53:23,041 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:53:23,041 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 [] [2023-11-29 05:53:23,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-29 05:53:23,046 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:53:23,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:23,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:53:23,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:23,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:23,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:23,118 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 [2023-11-29 05:53:23,118 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) [2023-11-29 05:53:23,142 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. [2023-11-29 05:53:23,143 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 [2023-11-29 05:53:23,143 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) [2023-11-29 05:53:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2023-11-29 05:53:23,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2023-11-29 05:53:23,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:23,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2023-11-29 05:53:23,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:23,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-29 05:53:23,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:53:23,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2023-11-29 05:53:23,146 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2023-11-29 05:53:23,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2023-11-29 05:53:23,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-11-29 05:53:23,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2023-11-29 05:53:23,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2023-11-29 05:53:23,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:23,148 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2023-11-29 05:53:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2023-11-29 05:53:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-29 05:53:23,150 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) [2023-11-29 05:53:23,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2023-11-29 05:53:23,151 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2023-11-29 05:53:23,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:23,152 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) [2023-11-29 05:53:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:23,165 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2023-11-29 05:53:23,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2023-11-29 05:53:23,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2023-11-29 05:53:23,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2023-11-29 05:53:23,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-29 05:53:23,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2023-11-29 05:53:23,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2023-11-29 05:53:23,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:53:23,167 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2023-11-29 05:53:23,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2023-11-29 05:53:23,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-29 05:53:23,168 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) [2023-11-29 05:53:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2023-11-29 05:53:23,169 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2023-11-29 05:53:23,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:23,170 INFO L428 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2023-11-29 05:53:23,170 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-29 05:53:23,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2023-11-29 05:53:23,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2023-11-29 05:53:23,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:53:23,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:53:23,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:23,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:23,172 INFO L748 eck$LassoCheckResult]: Stem: 3269#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3260#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3261#$Ultimate##5 assume !false; 3286#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3284#L36 assume 8466 == main_~s__state~0#1; 3283#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3282#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3280#$Ultimate##5 assume !false; 3276#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3274#L36 assume !(8466 == main_~s__state~0#1); 3272#L41 assume 8512 == main_~s__state~0#1; 3242#main_switch_1_8512#1 [2023-11-29 05:53:23,172 INFO L750 eck$LassoCheckResult]: Loop: 3242#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3243#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3256#$Ultimate##5 assume !false; 3292#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3290#L36 assume 8466 == main_~s__state~0#1; 3250#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 3251#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3268#$Ultimate##5 assume !false; 3291#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3289#L36 assume !(8466 == main_~s__state~0#1); 3271#L41 assume 8512 == main_~s__state~0#1; 3242#main_switch_1_8512#1 [2023-11-29 05:53:23,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2023-11-29 05:53:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:23,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899928284] [2023-11-29 05:53:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:23,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2023-11-29 05:53:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:23,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667819192] [2023-11-29 05:53:23,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:23,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2023-11-29 05:53:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:23,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116520318] [2023-11-29 05:53:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:53:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:53:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:53:23,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 05:53:23 BoogieIcfgContainer [2023-11-29 05:53:23,420 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 05:53:23,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:53:23,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:53:23,421 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:53:23,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:19" (3/4) ... [2023-11-29 05:53:23,422 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 05:53:23,453 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:53:23,453 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:53:23,454 INFO L158 Benchmark]: Toolchain (without parser) took 4220.09ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 104.9MB in the beginning and 116.1MB in the end (delta: -11.2MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,454 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:23,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.40ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 94.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.35ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 92.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,456 INFO L158 Benchmark]: Boogie Preprocessor took 30.35ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 91.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,456 INFO L158 Benchmark]: RCFGBuilder took 255.23ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,456 INFO L158 Benchmark]: BuchiAutomizer took 3671.58ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 80.2MB in the beginning and 118.1MB in the end (delta: -37.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,457 INFO L158 Benchmark]: Witness Printer took 33.07ms. Allocated memory is still 192.9MB. Free memory was 118.1MB in the beginning and 116.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:23,459 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.40ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 94.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.35ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 92.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.35ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 91.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.23ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 80.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3671.58ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 80.2MB in the beginning and 118.1MB in the end (delta: -37.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 33.07ms. Allocated memory is still 192.9MB. Free memory was 118.1MB in the beginning and 116.1MB in the end (delta: 2.0MB). 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 3.6s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. 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, 251 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 545 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 351 mSDtfsCounter, 271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq192 hnf89 smp100 dnf145 smp81 tf114 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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! [2023-11-29 05:53:23,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-29 05:53:23,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_569a81ac-a02c-4420-90c6-b062b6a97368/bin/uautomizer-verify-BQ2R08f2Ya/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)