./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 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/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_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU --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 0.2.5-dev-4fc63b2 [2024-10-31 22:10:13,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:13,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:10:13,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:13,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:13,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:13,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:13,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:13,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:10:13,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:10:13,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:13,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:13,580 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:13,587 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:10:13,588 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:10:13,588 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:10:13,588 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:10:13,589 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:10:13,589 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:10:13,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:13,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:10:13,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:13,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:13,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:13,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:13,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:10:13,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:10:13,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:10:13,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:13,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:13,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:13,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:13,599 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:10:13,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:13,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:13,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:13,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:13,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:13,601 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:10:13,601 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_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2024-10-31 22:10:13,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:13,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:13,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:13,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:13,955 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:13,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c Unable to find full path for "g++" [2024-10-31 22:10:16,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:16,360 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:16,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-10-31 22:10:16,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/data/d7f7d665e/990054c13383495f980c580e9dee5c65/FLAG90327efb8 [2024-10-31 22:10:16,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/data/d7f7d665e/990054c13383495f980c580e9dee5c65 [2024-10-31 22:10:16,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:16,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:16,693 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:16,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:16,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:16,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:16" (1/1) ... [2024-10-31 22:10:16,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15109098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:16, skipping insertion in model container [2024-10-31 22:10:16,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:16" (1/1) ... [2024-10-31 22:10:16,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:16,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:16,965 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:16,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:17,001 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:17,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17 WrapperNode [2024-10-31 22:10:17,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:17,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:17,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:17,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:17,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,040 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-10-31 22:10:17,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:17,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:17,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:17,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:17,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,069 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]. [2024-10-31 22:10:17,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:17,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:17,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:17,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:17,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (1/1) ... [2024-10-31 22:10:17,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:17,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:17,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:17,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:17,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:17,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:10:17,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:17,249 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:17,252 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:17,461 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-31 22:10:17,461 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:17,475 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:17,475 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:10:17,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:17 BoogieIcfgContainer [2024-10-31 22:10:17,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:17,477 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:10:17,478 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:10:17,481 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:10:17,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:10:17,484 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:10:16" (1/3) ... [2024-10-31 22:10:17,485 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@479eb9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:10:17, skipping insertion in model container [2024-10-31 22:10:17,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:10:17,485 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:17" (2/3) ... [2024-10-31 22:10:17,486 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@479eb9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:10:17, skipping insertion in model container [2024-10-31 22:10:17,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:10:17,486 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:17" (3/3) ... [2024-10-31 22:10:17,487 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2024-10-31 22:10:17,556 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:10:17,557 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:10:17,557 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:10:17,557 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:10:17,557 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:10:17,557 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:10:17,558 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:10:17,558 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:10:17,564 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) [2024-10-31 22:10:17,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:10:17,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:17,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:17,593 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:10:17,593 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:10:17,594 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:10:17,594 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) [2024-10-31 22:10:17,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:10:17,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:17,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:17,599 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:10:17,599 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:10:17,607 INFO L745 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 [2024-10-31 22:10:17,609 INFO L747 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 [2024-10-31 22:10:17,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:10:17,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:17,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399008176] [2024-10-31 22:10:17,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:17,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:17,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:17,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:17,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2024-10-31 22:10:17,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:17,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373436637] [2024-10-31 22:10:17,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:17,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:17,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:17,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:17,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:17,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2024-10-31 22:10:17,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:17,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091832267] [2024-10-31 22:10:17,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:17,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:17,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:17,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:17,963 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:17,964 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:17,964 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:17,964 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:17,965 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:10:17,965 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:17,965 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:17,965 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:17,965 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-10-31 22:10:17,966 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:17,966 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:17,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:18,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:18,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:18,121 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:18,122 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:10:18,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:18,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:18,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:10:18,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:18,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:18,159 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:10:18,159 INFO L401 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: [] [2024-10-31 22:10:18,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:10:18,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:18,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:18,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:10:18,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:18,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:18,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:18,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:18,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:18,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:10:18,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:10:18,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:18,239 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:10:18,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:10:18,259 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:18,259 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:18,260 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:18,260 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:18,260 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:10:18,261 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,262 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:18,262 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:18,262 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-10-31 22:10:18,262 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:18,262 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:18,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:18,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:18,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:18,355 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:18,360 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:10:18,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:18,365 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:18,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:10:18,368 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 [2024-10-31 22:10:18,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:18,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:18,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:18,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:18,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:18,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:18,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:18,390 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:10:18,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:18,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:18,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:18,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:10:18,418 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 [2024-10-31 22:10:18,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:18,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:18,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:18,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:18,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:18,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:18,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:18,446 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:10:18,451 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:10:18,451 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:10:18,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:18,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:18,465 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:18,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:10:18,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:10:18,469 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:10:18,469 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:10:18,470 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -1*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2024-10-31 22:10:18,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:18,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:10:18,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:18,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:10:18,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:18,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:18,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:18,724 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 [2024-10-31 22:10:18,728 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) [2024-10-31 22:10:18,877 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 82 transitions. Complement of second has 6 states. [2024-10-31 22:10:18,880 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 [2024-10-31 22:10:18,887 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) [2024-10-31 22:10:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-10-31 22:10:18,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 5 letters. [2024-10-31 22:10:18,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:18,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 7 letters. Loop has 5 letters. [2024-10-31 22:10:18,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:18,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 10 letters. [2024-10-31 22:10:18,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:18,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 82 transitions. [2024-10-31 22:10:18,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:10:18,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 59 transitions. [2024-10-31 22:10:18,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-10-31 22:10:18,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-31 22:10:18,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2024-10-31 22:10:18,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:18,910 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2024-10-31 22:10:18,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2024-10-31 22:10:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-10-31 22:10:18,946 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) [2024-10-31 22:10:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2024-10-31 22:10:18,948 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-10-31 22:10:18,949 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-10-31 22:10:18,949 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:10:18,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2024-10-31 22:10:18,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:10:18,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:18,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:18,951 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:10:18,952 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:10:18,952 INFO L745 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#$Ultimate##5 assume !false; 120#L30 [2024-10-31 22:10:18,952 INFO L747 eck$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 [2024-10-31 22:10:18,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-31 22:10:18,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:18,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287167620] [2024-10-31 22:10:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:18,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:18,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:18,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:18,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:18,972 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2024-10-31 22:10:18,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:18,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612884689] [2024-10-31 22:10:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:18,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:18,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:18,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:18,987 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2024-10-31 22:10:18,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:18,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361395086] [2024-10-31 22:10:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:18,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:19,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:19,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361395086] [2024-10-31 22:10:19,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361395086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:19,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:19,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:19,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540502849] [2024-10-31 22:10:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:19,115 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:19,115 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:19,115 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:19,115 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:19,115 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:10:19,116 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,116 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:19,116 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:19,116 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-10-31 22:10:19,116 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:19,116 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:19,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:19,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:19,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:19,208 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:19,208 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:10:19,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,211 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:10:19,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:19,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:19,246 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:10:19,246 INFO L401 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: [] [2024-10-31 22:10:19,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:19,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,268 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:10:19,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:19,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:19,292 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:10:19,292 INFO L401 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: [] [2024-10-31 22:10:19,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:19,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,315 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:10:19,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:19,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:19,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:19,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:10:19,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:10:19,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:19,383 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:10:19,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:10:19,403 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:19,404 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:19,404 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:19,404 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:19,404 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:10:19,404 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,404 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:19,404 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:19,404 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-10-31 22:10:19,404 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:19,404 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:19,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:19,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:19,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:19,488 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:19,488 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:10:19,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,490 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:10:19,493 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 [2024-10-31 22:10:19,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:19,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:19,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:19,507 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:10:19,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:19,509 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:10:19,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:19,513 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:10:19,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:10:19,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,534 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:10:19,538 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 [2024-10-31 22:10:19,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:19,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:19,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:19,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:19,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:19,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:19,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:19,557 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:10:19,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:10:19,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,579 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:10:19,582 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 [2024-10-31 22:10:19,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:19,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:19,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:19,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:19,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:19,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:19,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:19,603 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:10:19,608 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:10:19,608 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:10:19,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:19,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:19,611 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:19,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:10:19,613 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:10:19,613 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:10:19,614 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:10:19,614 INFO L476 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 [] [2024-10-31 22:10:19,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:19,637 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:10:19,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:19,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:10:19,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:19,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:19,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:19,742 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 [2024-10-31 22:10:19,742 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) [2024-10-31 22:10:19,787 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 72 states and 109 transitions. Complement of second has 7 states. [2024-10-31 22:10:19,788 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 [2024-10-31 22:10:19,789 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) [2024-10-31 22:10:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-10-31 22:10:19,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 5 letters. [2024-10-31 22:10:19,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:19,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 5 letters. [2024-10-31 22:10:19,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:19,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 10 letters. [2024-10-31 22:10:19,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:19,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 109 transitions. [2024-10-31 22:10:19,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:10:19,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 61 states and 97 transitions. [2024-10-31 22:10:19,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-10-31 22:10:19,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-10-31 22:10:19,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 97 transitions. [2024-10-31 22:10:19,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:19,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 97 transitions. [2024-10-31 22:10:19,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 97 transitions. [2024-10-31 22:10:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2024-10-31 22:10:19,798 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) [2024-10-31 22:10:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2024-10-31 22:10:19,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2024-10-31 22:10:19,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:19,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:19,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:19,803 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) [2024-10-31 22:10:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:19,848 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2024-10-31 22:10:19,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2024-10-31 22:10:19,850 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-10-31 22:10:19,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2024-10-31 22:10:19,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-10-31 22:10:19,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-10-31 22:10:19,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2024-10-31 22:10:19,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:19,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-10-31 22:10:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2024-10-31 22:10:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2024-10-31 22:10:19,869 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) [2024-10-31 22:10:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-10-31 22:10:19,871 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-10-31 22:10:19,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:19,879 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-10-31 22:10:19,879 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:10:19,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2024-10-31 22:10:19,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-10-31 22:10:19,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:19,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:19,882 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:10:19,882 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:10:19,888 INFO L745 eck$LassoCheckResult]: Stem: 461#$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); 448#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; 449#$Ultimate##5 assume !false; 421#L30 [2024-10-31 22:10:19,889 INFO L747 eck$LassoCheckResult]: Loop: 421#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 422#L36 assume !(8466 == main_~s__state~0#1); 445#L41 assume 8512 == main_~s__state~0#1; 425#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 426#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 433#$Ultimate##5 assume !false; 421#L30 [2024-10-31 22:10:19,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2024-10-31 22:10:19,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:19,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281134931] [2024-10-31 22:10:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:19,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:19,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:10:19,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:19,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:19,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2024-10-31 22:10:19,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:19,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492233857] [2024-10-31 22:10:19,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:19,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:19,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:19,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:19,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2024-10-31 22:10:19,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:19,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804801175] [2024-10-31 22:10:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:19,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:19,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:20,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:20,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804801175] [2024-10-31 22:10:20,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804801175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:20,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:20,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:20,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978969913] [2024-10-31 22:10:20,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:20,091 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:20,092 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:20,092 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:20,092 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:20,092 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:10:20,092 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,092 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:20,093 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:20,093 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-10-31 22:10:20,093 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:20,093 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:20,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,150 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:20,151 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:10:20,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,154 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:10:20,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:20,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:20,178 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:10:20,178 INFO L401 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: [] [2024-10-31 22:10:20,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:10:20,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,201 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:10:20,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:20,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:20,230 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:10:20,231 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=2} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:10:20,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:20,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,246 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:10:20,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:20,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:20,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:10:20,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,278 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:10:20,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:10:20,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:20,296 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:10:20,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:20,315 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:20,315 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:20,315 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:20,315 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:20,315 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:10:20,315 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,315 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:20,315 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:20,315 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-10-31 22:10:20,316 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:20,316 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:20,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,368 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:20,368 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:10:20,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,370 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:10:20,380 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 [2024-10-31 22:10:20,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:20,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:20,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:20,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:20,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:20,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:20,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:20,402 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:10:20,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:20,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,425 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:10:20,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:10:20,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:20,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:20,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:20,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:20,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:20,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:20,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:20,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:10:20,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:10:20,457 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:10:20,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:20,459 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:20,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:10:20,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:10:20,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:10:20,462 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:10:20,462 INFO L476 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 [] [2024-10-31 22:10:20,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:20,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:10:20,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:20,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:10:20,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:20,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:20,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:20,581 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 [2024-10-31 22:10:20,581 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) [2024-10-31 22:10:20,727 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 255 states and 373 transitions. Complement of second has 9 states. [2024-10-31 22:10:20,727 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 [2024-10-31 22:10:20,728 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) [2024-10-31 22:10:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2024-10-31 22:10:20,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-31 22:10:20,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:20,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-31 22:10:20,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:20,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 12 letters. [2024-10-31 22:10:20,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:20,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 373 transitions. [2024-10-31 22:10:20,734 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2024-10-31 22:10:20,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 254 states and 372 transitions. [2024-10-31 22:10:20,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2024-10-31 22:10:20,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2024-10-31 22:10:20,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 254 states and 372 transitions. [2024-10-31 22:10:20,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:20,741 INFO L218 hiAutomatonCegarLoop]: Abstraction has 254 states and 372 transitions. [2024-10-31 22:10:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states and 372 transitions. [2024-10-31 22:10:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 199. [2024-10-31 22:10:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.4522613065326633) internal successors, (289), 198 states have internal predecessors, (289), 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) [2024-10-31 22:10:20,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 289 transitions. [2024-10-31 22:10:20,765 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 289 transitions. [2024-10-31 22:10:20,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:20,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:20,766 INFO L87 Difference]: Start difference. First operand 199 states and 289 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) [2024-10-31 22:10:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:20,798 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2024-10-31 22:10:20,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 95 transitions. [2024-10-31 22:10:20,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-10-31 22:10:20,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 61 states and 90 transitions. [2024-10-31 22:10:20,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-10-31 22:10:20,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-10-31 22:10:20,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2024-10-31 22:10:20,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:20,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-10-31 22:10:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2024-10-31 22:10:20,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-31 22:10:20,807 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) [2024-10-31 22:10:20,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2024-10-31 22:10:20,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-10-31 22:10:20,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:20,809 INFO L425 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-10-31 22:10:20,809 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:10:20,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2024-10-31 22:10:20,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-10-31 22:10:20,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:20,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:20,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:20,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:10:20,815 INFO L745 eck$LassoCheckResult]: Stem: 1122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1114#$Ultimate##5 assume !false; 1084#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1085#L36 assume 8466 == main_~s__state~0#1; 1112#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1128#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1124#$Ultimate##5 assume !false; 1123#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1110#L36 assume !(8466 == main_~s__state~0#1); 1111#L41 [2024-10-31 22:10:20,815 INFO L747 eck$LassoCheckResult]: Loop: 1111#L41 assume 8512 == main_~s__state~0#1; 1086#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 1087#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 1108#$Ultimate##5 assume !false; 1142#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1141#L36 assume !(8466 == main_~s__state~0#1); 1111#L41 [2024-10-31 22:10:20,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2024-10-31 22:10:20,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:20,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756057396] [2024-10-31 22:10:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:20,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:20,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:20,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:20,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:20,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2024-10-31 22:10:20,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:20,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051394212] [2024-10-31 22:10:20,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:20,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:20,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:20,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:20,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:20,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2024-10-31 22:10:20,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:20,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467708191] [2024-10-31 22:10:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:20,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:20,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:20,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467708191] [2024-10-31 22:10:20,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467708191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:20,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:20,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:20,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107506939] [2024-10-31 22:10:20,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:20,973 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:20,974 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:20,975 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:20,975 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:20,975 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:10:20,975 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:20,976 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:20,976 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:20,976 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-10-31 22:10:20,976 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:20,976 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:20,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:20,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:21,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:21,014 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:10:21,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:21,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:21,017 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:21,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:10:21,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:21,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:21,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:21,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:21,065 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:21,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:10:21,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:10:21,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:21,088 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:10:21,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:21,104 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:21,105 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:21,105 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:21,105 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:21,105 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:10:21,105 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:21,105 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:21,105 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:21,105 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-10-31 22:10:21,105 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:21,105 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:21,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:21,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:21,147 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:21,147 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:10:21,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:21,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:21,150 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:21,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:10:21,152 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 [2024-10-31 22:10:21,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:21,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:21,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:21,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:21,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:21,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:21,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:21,173 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:10:21,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:10:21,179 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:10:21,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:21,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:21,182 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:21,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:10:21,188 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:10:21,188 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:10:21,188 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:10:21,189 INFO L476 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 [] [2024-10-31 22:10:21,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:21,211 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:10:21,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:21,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:10:21,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:21,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:21,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:21,335 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 [2024-10-31 22:10:21,335 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) [2024-10-31 22:10:21,453 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 167 states and 244 transitions. Complement of second has 9 states. [2024-10-31 22:10:21,454 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 [2024-10-31 22:10:21,455 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) [2024-10-31 22:10:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-10-31 22:10:21,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2024-10-31 22:10:21,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:21,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 6 letters. [2024-10-31 22:10:21,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:21,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 12 letters. [2024-10-31 22:10:21,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:21,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 244 transitions. [2024-10-31 22:10:21,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-10-31 22:10:21,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 147 states and 216 transitions. [2024-10-31 22:10:21,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-10-31 22:10:21,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-31 22:10:21,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 216 transitions. [2024-10-31 22:10:21,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:21,461 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 216 transitions. [2024-10-31 22:10:21,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 216 transitions. [2024-10-31 22:10:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-10-31 22:10:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.4680851063829787) internal successors, (207), 140 states have internal predecessors, (207), 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) [2024-10-31 22:10:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2024-10-31 22:10:21,475 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 207 transitions. [2024-10-31 22:10:21,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:21,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:21,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:21,476 INFO L87 Difference]: Start difference. First operand 141 states and 207 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) [2024-10-31 22:10:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:21,514 INFO L93 Difference]: Finished difference Result 180 states and 247 transitions. [2024-10-31 22:10:21,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 247 transitions. [2024-10-31 22:10:21,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2024-10-31 22:10:21,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 170 states and 235 transitions. [2024-10-31 22:10:21,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-10-31 22:10:21,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-10-31 22:10:21,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 235 transitions. [2024-10-31 22:10:21,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:21,518 INFO L218 hiAutomatonCegarLoop]: Abstraction has 170 states and 235 transitions. [2024-10-31 22:10:21,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 235 transitions. [2024-10-31 22:10:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 146. [2024-10-31 22:10:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.4315068493150684) internal successors, (209), 145 states have internal predecessors, (209), 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) [2024-10-31 22:10:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 209 transitions. [2024-10-31 22:10:21,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-10-31 22:10:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:21,526 INFO L425 stractBuchiCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-10-31 22:10:21,526 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:10:21,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 209 transitions. [2024-10-31 22:10:21,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2024-10-31 22:10:21,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:21,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:21,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,528 INFO L745 eck$LassoCheckResult]: Stem: 1752#$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); 1740#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; 1741#$Ultimate##5 assume !false; 1823#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1824#L36 assume 8466 == main_~s__state~0#1; 1802#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1799#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1720#$Ultimate##5 [2024-10-31 22:10:21,528 INFO L747 eck$LassoCheckResult]: Loop: 1720#$Ultimate##5 assume !false; 1708#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1709#L36 assume !(8466 == main_~s__state~0#1); 1738#L41 assume !(8512 == main_~s__state~0#1); 1747#L57 assume !(8640 == main_~s__state~0#1); 1716#L61 assume 8656 == main_~s__state~0#1; 1717#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1727#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1729#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1735#$Ultimate##5 assume !false; 1820#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1818#L36 assume 8466 == main_~s__state~0#1; 1758#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1749#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1720#$Ultimate##5 [2024-10-31 22:10:21,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2024-10-31 22:10:21,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714260] [2024-10-31 22:10:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:21,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2024-10-31 22:10:21,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984825010] [2024-10-31 22:10:21,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:21,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:21,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984825010] [2024-10-31 22:10:21,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984825010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:21,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:21,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848451468] [2024-10-31 22:10:21,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:21,573 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:10:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:21,574 INFO L87 Difference]: Start difference. First operand 146 states and 209 transitions. cyclomatic complexity: 71 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) [2024-10-31 22:10:21,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:21,607 INFO L93 Difference]: Finished difference Result 194 states and 270 transitions. [2024-10-31 22:10:21,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 270 transitions. [2024-10-31 22:10:21,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-10-31 22:10:21,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 270 transitions. [2024-10-31 22:10:21,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2024-10-31 22:10:21,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2024-10-31 22:10:21,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 270 transitions. [2024-10-31 22:10:21,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:21,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-10-31 22:10:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 270 transitions. [2024-10-31 22:10:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-10-31 22:10:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.3917525773195876) internal successors, (270), 193 states have internal predecessors, (270), 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) [2024-10-31 22:10:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2024-10-31 22:10:21,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-10-31 22:10:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:21,619 INFO L425 stractBuchiCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-10-31 22:10:21,619 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:10:21,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 270 transitions. [2024-10-31 22:10:21,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-10-31 22:10:21,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:21,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:21,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,622 INFO L745 eck$LassoCheckResult]: Stem: 2106#$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); 2084#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; 2085#$Ultimate##5 assume !false; 2185#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2186#L36 assume 8466 == main_~s__state~0#1; 2164#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2160#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2128#$Ultimate##5 [2024-10-31 22:10:21,622 INFO L747 eck$LassoCheckResult]: Loop: 2128#$Ultimate##5 assume !false; 2142#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2140#L36 assume !(8466 == main_~s__state~0#1); 2138#L41 assume !(8512 == main_~s__state~0#1); 2136#L57 assume !(8640 == main_~s__state~0#1); 2062#L61 assume 8656 == main_~s__state~0#1; 2063#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2073#L100-1 assume !(4 == main_~blastFlag~0#1); 2074#L107 assume !(5 == main_~blastFlag~0#1); 2107#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2108#$Ultimate##5 assume !false; 2169#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2170#L36 assume 8466 == main_~s__state~0#1; 2149#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 2145#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2128#$Ultimate##5 [2024-10-31 22:10:21,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2024-10-31 22:10:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278905895] [2024-10-31 22:10:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:21,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2024-10-31 22:10:21,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923184239] [2024-10-31 22:10:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:21,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:21,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:21,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923184239] [2024-10-31 22:10:21,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923184239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:21,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:21,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:21,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470180192] [2024-10-31 22:10:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:21,690 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:10:21,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:21,691 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. cyclomatic complexity: 84 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) [2024-10-31 22:10:21,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:21,755 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2024-10-31 22:10:21,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 218 transitions. [2024-10-31 22:10:21,757 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-10-31 22:10:21,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 117 states and 149 transitions. [2024-10-31 22:10:21,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2024-10-31 22:10:21,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-10-31 22:10:21,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 149 transitions. [2024-10-31 22:10:21,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:21,759 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-10-31 22:10:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 149 transitions. [2024-10-31 22:10:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2024-10-31 22:10:21,762 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) [2024-10-31 22:10:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-10-31 22:10:21,763 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-10-31 22:10:21,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:21,764 INFO L425 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-10-31 22:10:21,764 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:10:21,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2024-10-31 22:10:21,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-10-31 22:10:21,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:21,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:21,766 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,766 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,766 INFO L745 eck$LassoCheckResult]: Stem: 2457#$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); 2446#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; 2447#$Ultimate##5 assume !false; 2483#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2484#L36 assume 8466 == main_~s__state~0#1; 2477#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2471#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2473#$Ultimate##5 [2024-10-31 22:10:21,766 INFO L747 eck$LassoCheckResult]: Loop: 2473#$Ultimate##5 assume !false; 2504#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2500#L36 assume !(8466 == main_~s__state~0#1); 2501#L41 assume !(8512 == main_~s__state~0#1); 2459#L57 assume !(8640 == main_~s__state~0#1); 2427#L61 assume 8656 == main_~s__state~0#1; 2428#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2440#L100-1 assume !(4 == main_~blastFlag~0#1); 2441#L107 assume !(5 == main_~blastFlag~0#1); 2448#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2433#$Ultimate##5 assume !false; 2423#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2424#L36 assume !(8466 == main_~s__state~0#1); 2443#L41 assume !(8512 == main_~s__state~0#1); 2452#L57 assume 8640 == main_~s__state~0#1; 2449#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2451#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2473#$Ultimate##5 [2024-10-31 22:10:21,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2024-10-31 22:10:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830746453] [2024-10-31 22:10:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:21,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,779 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2024-10-31 22:10:21,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424296346] [2024-10-31 22:10:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:21,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:21,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:21,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424296346] [2024-10-31 22:10:21,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424296346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:21,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:21,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:21,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98085391] [2024-10-31 22:10:21,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:21,827 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:10:21,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:21,827 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) [2024-10-31 22:10:21,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:21,862 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2024-10-31 22:10:21,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2024-10-31 22:10:21,863 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-10-31 22:10:21,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2024-10-31 22:10:21,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2024-10-31 22:10:21,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-10-31 22:10:21,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2024-10-31 22:10:21,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:21,866 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-10-31 22:10:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2024-10-31 22:10:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-10-31 22:10:21,868 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) [2024-10-31 22:10:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2024-10-31 22:10:21,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-10-31 22:10:21,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:21,870 INFO L425 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-10-31 22:10:21,874 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:10:21,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2024-10-31 22:10:21,875 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-10-31 22:10:21,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:21,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:21,876 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,876 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,876 INFO L745 eck$LassoCheckResult]: Stem: 2685#$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); 2672#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; 2673#$Ultimate##5 assume !false; 2742#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2741#L36 assume 8466 == main_~s__state~0#1; 2665#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2666#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2716#$Ultimate##5 [2024-10-31 22:10:21,876 INFO L747 eck$LassoCheckResult]: Loop: 2716#$Ultimate##5 assume !false; 2760#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2759#L36 assume !(8466 == main_~s__state~0#1); 2758#L41 assume !(8512 == main_~s__state~0#1); 2757#L57 assume !(8640 == main_~s__state~0#1); 2755#L61 assume 8656 == main_~s__state~0#1; 2754#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2667#L100-1 assume !(4 == main_~blastFlag~0#1); 2668#L107 assume !(5 == main_~blastFlag~0#1); 2765#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2729#$Ultimate##5 assume !false; 2764#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2763#L36 assume !(8466 == main_~s__state~0#1); 2761#L41 assume !(8512 == main_~s__state~0#1); 2703#L57 assume 8640 == main_~s__state~0#1; 2756#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2762#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2716#$Ultimate##5 [2024-10-31 22:10:21,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2024-10-31 22:10:21,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046927951] [2024-10-31 22:10:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:21,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2024-10-31 22:10:21,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394414545] [2024-10-31 22:10:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:21,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:21,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394414545] [2024-10-31 22:10:21,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394414545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:21,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:21,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:21,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078734072] [2024-10-31 22:10:21,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:21,942 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:10:21,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:21,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:21,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:21,943 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) [2024-10-31 22:10:21,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:21,953 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2024-10-31 22:10:21,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2024-10-31 22:10:21,954 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-10-31 22:10:21,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2024-10-31 22:10:21,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2024-10-31 22:10:21,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-10-31 22:10:21,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2024-10-31 22:10:21,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:21,960 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2024-10-31 22:10:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2024-10-31 22:10:21,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-10-31 22:10:21,963 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) [2024-10-31 22:10:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-10-31 22:10:21,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-10-31 22:10:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:21,966 INFO L425 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-10-31 22:10:21,966 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:10:21,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2024-10-31 22:10:21,967 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-10-31 22:10:21,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:21,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:21,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:21,968 INFO L745 eck$LassoCheckResult]: Stem: 2951#$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); 2938#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; 2939#$Ultimate##5 assume !false; 2916#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2917#L36 assume 8466 == main_~s__state~0#1; 2937#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2983#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2924#$Ultimate##5 [2024-10-31 22:10:21,968 INFO L747 eck$LassoCheckResult]: Loop: 2924#$Ultimate##5 assume !false; 2914#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2915#L36 assume !(8466 == main_~s__state~0#1); 2936#L41 assume !(8512 == main_~s__state~0#1); 2946#L57 assume !(8640 == main_~s__state~0#1); 2918#L61 assume 8656 == main_~s__state~0#1; 2919#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 3015#L100-1 assume !(4 == main_~blastFlag~0#1); 2941#L107 assume !(5 == main_~blastFlag~0#1); 2942#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2924#$Ultimate##5 [2024-10-31 22:10:21,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2024-10-31 22:10:21,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067058110] [2024-10-31 22:10:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:21,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:21,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2024-10-31 22:10:21,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:21,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495343682] [2024-10-31 22:10:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:21,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:21,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:22,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2024-10-31 22:10:22,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:22,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241217362] [2024-10-31 22:10:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:22,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:22,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241217362] [2024-10-31 22:10:22,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241217362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:22,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:22,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:22,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672621204] [2024-10-31 22:10:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:22,095 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:22,095 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:22,095 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:22,095 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:22,095 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:10:22,095 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:22,095 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:22,095 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:22,095 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-10-31 22:10:22,095 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:22,095 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:22,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:22,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:22,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:22,212 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:22,213 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:10:22,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:22,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:22,216 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:22,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:10:22,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:10:22,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:22,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:22,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:22,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:22,266 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:22,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:10:22,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:10:22,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:10:22,293 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:10:22,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:10:22,312 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:10:22,312 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:10:22,312 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:10:22,312 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:10:22,313 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:10:22,313 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:22,313 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:10:22,313 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:10:22,313 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-10-31 22:10:22,313 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:10:22,313 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:10:22,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:22,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:22,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:10:22,436 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:10:22,436 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:10:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:22,440 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:22,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:10:22,446 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 [2024-10-31 22:10:22,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:10:22,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:10:22,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:10:22,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:10:22,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:10:22,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:10:22,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:10:22,468 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:10:22,473 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:10:22,473 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:10:22,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:10:22,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:22,476 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:22,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:10:22,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:10:22,479 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:10:22,479 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:10:22,479 INFO L476 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 [] [2024-10-31 22:10:22,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:22,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:10:22,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:22,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:10:22,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:22,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:22,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:22,588 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 [2024-10-31 22:10:22,589 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) [2024-10-31 22:10:22,616 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. [2024-10-31 22:10:22,617 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 [2024-10-31 22:10:22,618 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) [2024-10-31 22:10:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-10-31 22:10:22,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2024-10-31 22:10:22,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:22,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2024-10-31 22:10:22,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:22,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2024-10-31 22:10:22,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:10:22,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2024-10-31 22:10:22,624 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-10-31 22:10:22,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2024-10-31 22:10:22,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-10-31 22:10:22,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-10-31 22:10:22,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2024-10-31 22:10:22,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:22,627 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-10-31 22:10:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2024-10-31 22:10:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-10-31 22:10:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 108 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2024-10-31 22:10:22,630 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-10-31 22:10:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:22,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:22,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:22,632 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) [2024-10-31 22:10:22,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:22,648 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2024-10-31 22:10:22,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2024-10-31 22:10:22,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-10-31 22:10:22,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2024-10-31 22:10:22,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-10-31 22:10:22,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-31 22:10:22,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2024-10-31 22:10:22,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:10:22,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-10-31 22:10:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2024-10-31 22:10:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-31 22:10:22,652 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) [2024-10-31 22:10:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-10-31 22:10:22,652 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-10-31 22:10:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:22,654 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-10-31 22:10:22,654 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-31 22:10:22,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2024-10-31 22:10:22,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-10-31 22:10:22,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:10:22,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:10:22,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:22,656 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:22,656 INFO L745 eck$LassoCheckResult]: Stem: 3477#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3467#$Ultimate##5 assume !false; 3496#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3495#L36 assume 8466 == main_~s__state~0#1; 3494#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3493#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3486#$Ultimate##5 assume !false; 3484#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3482#L36 assume !(8466 == main_~s__state~0#1); 3481#L41 assume 8512 == main_~s__state~0#1; 3450#main_switch_1_8512#1 [2024-10-31 22:10:22,657 INFO L747 eck$LassoCheckResult]: Loop: 3450#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 3451#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3464#$Ultimate##5 assume !false; 3501#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3499#L36 assume 8466 == main_~s__state~0#1; 3458#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 3459#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3475#$Ultimate##5 assume !false; 3498#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3497#L36 assume !(8466 == main_~s__state~0#1); 3480#L41 assume 8512 == main_~s__state~0#1; 3450#main_switch_1_8512#1 [2024-10-31 22:10:22,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:22,657 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2024-10-31 22:10:22,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:22,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012029798] [2024-10-31 22:10:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:22,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:22,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:22,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2024-10-31 22:10:22,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:22,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797136975] [2024-10-31 22:10:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:22,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:22,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:22,687 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2024-10-31 22:10:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:22,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257767488] [2024-10-31 22:10:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:22,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:10:22 BoogieIcfgContainer [2024-10-31 22:10:22,971 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:10:22,972 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:10:22,972 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:10:22,972 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:10:22,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:17" (3/4) ... [2024-10-31 22:10:22,975 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:10:23,024 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:10:23,027 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:10:23,028 INFO L158 Benchmark]: Toolchain (without parser) took 6336.81ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 99.8MB in the beginning and 52.6MB in the end (delta: 47.3MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,029 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:10:23,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.70ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 87.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.71ms. Allocated memory is still 132.1MB. Free memory was 87.0MB in the beginning and 85.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,030 INFO L158 Benchmark]: Boogie Preprocessor took 39.20ms. Allocated memory is still 132.1MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,030 INFO L158 Benchmark]: RCFGBuilder took 393.99ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 73.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,031 INFO L158 Benchmark]: BuchiAutomizer took 5493.42ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 72.8MB in the beginning and 54.7MB in the end (delta: 18.1MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,031 INFO L158 Benchmark]: Witness Printer took 56.11ms. Allocated memory is still 163.6MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:23,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.70ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 87.0MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.71ms. Allocated memory is still 132.1MB. Free memory was 87.0MB in the beginning and 85.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.20ms. Allocated memory is still 132.1MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.99ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 73.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5493.42ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 72.8MB in the beginning and 54.7MB in the end (delta: 18.1MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 56.11ms. Allocated memory is still 163.6MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long long) -1 * blastFlag) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -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 + ((long long) -1 * s__state)) and consists of 5 locations. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.4s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 13. Automata minimization 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 136 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, 202 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 539 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 340 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq192 hnf89 smp100 dnf145 smp81 tf114 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 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: 79]: 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] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2] [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] 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: 79]: 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] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2] [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] 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! [2024-10-31 22:10:23,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:10:23,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43741ac4-0c88-41d3-a8d6-0e39d22bfe29/bin/uautomizer-verify-4GaUIPS5ZU/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)