./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:31:26,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:31:26,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:31:26,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:31:26,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:31:26,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:31:26,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:31:26,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:31:26,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:31:26,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:31:26,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:31:26,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:31:26,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:31:26,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:31:26,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:31:26,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:31:26,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:31:26,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:31:26,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:31:26,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:31:26,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:31:26,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:31:26,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:31:26,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:31:26,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:31:26,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:31:26,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:31:26,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:31:26,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:31:26,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:31:26,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:31:26,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:31:26,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:31:26,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:31:26,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:31:26,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:31:26,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:31:26,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:31:26,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:31:26,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:31:26,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:31:26,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:31:26,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:31:26,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:31:26,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:31:26,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:31:26,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:31:26,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:31:26,385 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:31:26,385 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:31:26,386 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:31:26,386 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:31:26,387 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:31:26,387 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:31:26,388 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:31:26,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:31:26,388 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:31:26,388 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:31:26,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:31:26,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:31:26,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:31:26,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:31:26,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:31:26,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:31:26,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:31:26,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:31:26,391 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:31:26,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:31:26,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:31:26,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:31:26,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:31:26,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:31:26,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:31:26,395 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:31:26,395 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2022-11-16 11:31:26,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:31:26,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:31:26,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:31:26,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:31:26,665 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:31:26,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/loop-invgen/id_build.i [2022-11-16 11:31:26,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/data/e467bc4a3/18862ded3a7643eaab07948bb02f1f52/FLAG18c03376c [2022-11-16 11:31:27,216 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:31:27,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/sv-benchmarks/c/loop-invgen/id_build.i [2022-11-16 11:31:27,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/data/e467bc4a3/18862ded3a7643eaab07948bb02f1f52/FLAG18c03376c [2022-11-16 11:31:27,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/data/e467bc4a3/18862ded3a7643eaab07948bb02f1f52 [2022-11-16 11:31:27,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:31:27,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:31:27,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:31:27,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:31:27,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:31:27,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:27,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5845ed7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27, skipping insertion in model container [2022-11-16 11:31:27,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:27,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:31:27,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:31:27,933 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2022-11-16 11:31:27,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:31:27,949 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:31:27,962 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2022-11-16 11:31:27,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:31:27,978 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:31:27,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27 WrapperNode [2022-11-16 11:31:27,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:31:27,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:31:27,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:31:27,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:31:27,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:27,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,010 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2022-11-16 11:31:28,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:31:28,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:31:28,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:31:28,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:31:28,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,028 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:31:28,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:31:28,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:31:28,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:31:28,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (1/1) ... [2022-11-16 11:31:28,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:28,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:28,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:28,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:31:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:31:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:31:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:31:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:31:28,176 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:31:28,178 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:31:28,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:31:28,293 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:31:28,294 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:31:28,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:31:28 BoogieIcfgContainer [2022-11-16 11:31:28,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:31:28,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:31:28,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:31:28,301 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:31:28,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:31:28,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:31:27" (1/3) ... [2022-11-16 11:31:28,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6360c589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:31:28, skipping insertion in model container [2022-11-16 11:31:28,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:31:28,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:31:27" (2/3) ... [2022-11-16 11:31:28,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6360c589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:31:28, skipping insertion in model container [2022-11-16 11:31:28,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:31:28,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:31:28" (3/3) ... [2022-11-16 11:31:28,305 INFO L332 chiAutomizerObserver]: Analyzing ICFG id_build.i [2022-11-16 11:31:28,360 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:31:28,361 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:31:28,361 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:31:28,361 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:31:28,361 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:31:28,361 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:31:28,361 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:31:28,362 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:31:28,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-16 11:31:28,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:28,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:28,404 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:31:28,405 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:31:28,405 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:31:28,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-16 11:31:28,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:28,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:28,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:31:28,410 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:31:28,418 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 14#L27-3true [2022-11-16 11:31:28,419 INFO L750 eck$LassoCheckResult]: Loop: 14#L27-3true assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 15#L28-3true assume !(main_~j~0#1 < 8); 10#L27-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 14#L27-3true [2022-11-16 11:31:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:28,432 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:31:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:28,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136783251] [2022-11-16 11:31:28,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:28,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:28,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:28,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash 39941, now seen corresponding path program 1 times [2022-11-16 11:31:28,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:28,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649740164] [2022-11-16 11:31:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:28,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:28,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649740164] [2022-11-16 11:31:28,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649740164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:28,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:28,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:28,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441131944] [2022-11-16 11:31:28,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:28,704 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:31:28,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:28,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:28,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:28,748 INFO L87 Difference]: Start difference. First operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:28,790 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-16 11:31:28,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 25 transitions. [2022-11-16 11:31:28,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2022-11-16 11:31:28,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 16 states and 17 transitions. [2022-11-16 11:31:28,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-16 11:31:28,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-16 11:31:28,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2022-11-16 11:31:28,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:28,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-16 11:31:28,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2022-11-16 11:31:28,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-11-16 11:31:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-16 11:31:28,839 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-16 11:31:28,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:28,845 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-16 11:31:28,845 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:31:28,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2022-11-16 11:31:28,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-16 11:31:28,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:28,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:28,846 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:31:28,849 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:28,850 INFO L748 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 52#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 56#L27-3 [2022-11-16 11:31:28,850 INFO L750 eck$LassoCheckResult]: Loop: 56#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 57#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 49#L18 assume !(0 == __VERIFIER_assert_~cond#1); 50#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 53#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 54#L18-5 assume { :end_inline___VERIFIER_assert } true; 55#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 58#L28-3 assume !(main_~j~0#1 < 8); 59#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 56#L27-3 [2022-11-16 11:31:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-16 11:31:28,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:28,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992961716] [2022-11-16 11:31:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:28,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:28,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1762492053, now seen corresponding path program 1 times [2022-11-16 11:31:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:28,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085358540] [2022-11-16 11:31:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:28,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085358540] [2022-11-16 11:31:28,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085358540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:31:28,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613729367] [2022-11-16 11:31:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:28,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:28,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:31:28,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:31:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:31:29,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:29,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:31:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:29,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613729367] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:31:29,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:31:29,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-16 11:31:29,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372268897] [2022-11-16 11:31:29,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:31:29,214 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:31:29,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:29,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:31:29,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:29,216 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:29,280 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-16 11:31:29,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2022-11-16 11:31:29,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2022-11-16 11:31:29,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2022-11-16 11:31:29,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-11-16 11:31:29,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-11-16 11:31:29,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2022-11-16 11:31:29,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:29,283 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-16 11:31:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2022-11-16 11:31:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-16 11:31:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-16 11:31:29,286 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-16 11:31:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:31:29,296 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-16 11:31:29,296 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:31:29,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 30 transitions. [2022-11-16 11:31:29,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2022-11-16 11:31:29,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:29,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:29,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:31:29,301 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-16 11:31:29,301 INFO L748 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 149#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 155#L27-3 [2022-11-16 11:31:29,301 INFO L750 eck$LassoCheckResult]: Loop: 155#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 156#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 146#L18 assume !(0 == __VERIFIER_assert_~cond#1); 147#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 154#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 152#L18-5 assume { :end_inline___VERIFIER_assert } true; 153#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 157#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 174#L18 assume !(0 == __VERIFIER_assert_~cond#1); 150#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 151#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 173#L18-5 assume { :end_inline___VERIFIER_assert } true; 172#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 171#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 170#L18 assume !(0 == __VERIFIER_assert_~cond#1); 169#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 168#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 167#L18-5 assume { :end_inline___VERIFIER_assert } true; 166#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 165#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 160#L18 assume !(0 == __VERIFIER_assert_~cond#1); 164#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 163#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 162#L18-5 assume { :end_inline___VERIFIER_assert } true; 161#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 159#L28-3 assume !(main_~j~0#1 < 8); 158#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 155#L27-3 [2022-11-16 11:31:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-16 11:31:29,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660350133] [2022-11-16 11:31:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:29,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1080615355, now seen corresponding path program 2 times [2022-11-16 11:31:29,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356997386] [2022-11-16 11:31:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:29,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:29,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356997386] [2022-11-16 11:31:29,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356997386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:31:29,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934688804] [2022-11-16 11:31:29,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:31:29,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:29,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:29,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:31:29,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:31:29,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:31:29,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:31:29,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:31:29,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:29,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:31:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:29,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934688804] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:31:29,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:31:29,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-11-16 11:31:29,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911362186] [2022-11-16 11:31:29,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:31:29,771 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:31:29,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:31:29,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:31:29,772 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:29,814 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2022-11-16 11:31:29,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 54 transitions. [2022-11-16 11:31:29,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2022-11-16 11:31:29,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 54 transitions. [2022-11-16 11:31:29,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2022-11-16 11:31:29,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2022-11-16 11:31:29,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 54 transitions. [2022-11-16 11:31:29,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:29,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-11-16 11:31:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 54 transitions. [2022-11-16 11:31:29,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-16 11:31:29,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2022-11-16 11:31:29,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-11-16 11:31:29,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:31:29,823 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-11-16 11:31:29,823 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:31:29,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 54 transitions. [2022-11-16 11:31:29,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2022-11-16 11:31:29,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:29,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:29,826 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:31:29,826 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 8, 8, 8, 8, 1, 1, 1] [2022-11-16 11:31:29,826 INFO L748 eck$LassoCheckResult]: Stem: 399#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 400#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 406#L27-3 [2022-11-16 11:31:29,826 INFO L750 eck$LassoCheckResult]: Loop: 406#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 407#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 397#L18 assume !(0 == __VERIFIER_assert_~cond#1); 398#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 405#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 403#L18-5 assume { :end_inline___VERIFIER_assert } true; 404#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 408#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 449#L18 assume !(0 == __VERIFIER_assert_~cond#1); 401#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 402#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 448#L18-5 assume { :end_inline___VERIFIER_assert } true; 447#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 446#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 445#L18 assume !(0 == __VERIFIER_assert_~cond#1); 444#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 443#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 442#L18-5 assume { :end_inline___VERIFIER_assert } true; 441#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 440#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 439#L18 assume !(0 == __VERIFIER_assert_~cond#1); 438#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 437#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 436#L18-5 assume { :end_inline___VERIFIER_assert } true; 435#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 434#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 433#L18 assume !(0 == __VERIFIER_assert_~cond#1); 432#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 431#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 430#L18-5 assume { :end_inline___VERIFIER_assert } true; 429#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 428#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 427#L18 assume !(0 == __VERIFIER_assert_~cond#1); 426#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 425#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 424#L18-5 assume { :end_inline___VERIFIER_assert } true; 423#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 422#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 421#L18 assume !(0 == __VERIFIER_assert_~cond#1); 420#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 419#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 418#L18-5 assume { :end_inline___VERIFIER_assert } true; 417#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 416#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 411#L18 assume !(0 == __VERIFIER_assert_~cond#1); 415#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 414#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 413#L18-5 assume { :end_inline___VERIFIER_assert } true; 412#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 410#L28-3 assume !(main_~j~0#1 < 8); 409#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 406#L27-3 [2022-11-16 11:31:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,827 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-11-16 11:31:29,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259162151] [2022-11-16 11:31:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:29,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,838 INFO L85 PathProgramCache]: Analyzing trace with hash 811262085, now seen corresponding path program 3 times [2022-11-16 11:31:29,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752416334] [2022-11-16 11:31:29,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2018441603, now seen corresponding path program 1 times [2022-11-16 11:31:29,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750165328] [2022-11-16 11:31:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:29,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:30,762 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:31:30,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:31:30,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:31:30,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:31:30,763 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:31:30,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:30,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:31:30,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:31:30,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2022-11-16 11:31:30,764 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:31:30,764 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:31:30,781 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:30,792 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:30,795 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:30,807 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:30,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:30,882 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:31:30,882 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:31:30,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:30,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:30,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:30,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:30,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:30,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:31:30,981 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:31:30,981 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=8} Honda state: {ULTIMATE.start_main_~j~0#1=8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:31:30,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-16 11:31:30,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:30,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:30,992 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:31:31,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:31,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:31,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:31:31,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:31:31,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:31,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:31,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:31,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:31:31,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:31,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:31:31,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:31,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:31:31,171 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:31:31,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,185 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:31:31,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:31:31,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:31:31,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:31:31,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:31:31,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:31:31,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:31:31,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2022-11-16 11:31:31,186 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:31:31,186 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:31:31,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:31,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:31,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:31,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:31,211 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:31,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:31:31,279 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:31:31,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:31,283 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:31,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:31,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:31,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:31,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:31,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:31,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:31,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:31,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:31:31,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:31:31,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:31,330 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:31,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:31:31,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:31,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:31,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:31,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:31,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:31,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:31,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:31,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:31:31,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:31,373 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:31,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:31:31,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:31,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:31,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:31,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:31,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:31,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:31,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:31,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:31:31,428 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-16 11:31:31,428 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:31:31,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:31,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:31,439 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:31,446 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:31:31,446 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:31:31,446 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:31:31,447 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-16 11:31:31,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:31:31,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,458 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:31:31,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:31,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:31,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:31,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:31:31,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:31,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-16 11:31:31,806 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 11:31:31,807 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 107 transitions. Complement of second has 4 states. [2022-11-16 11:31:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:31:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-11-16 11:31:31,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 51 letters. [2022-11-16 11:31:31,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:31,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 53 letters. Loop has 51 letters. [2022-11-16 11:31:31,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:31,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 102 letters. [2022-11-16 11:31:31,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:31,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 107 transitions. [2022-11-16 11:31:31,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:31:31,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 103 states and 106 transitions. [2022-11-16 11:31:31,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-16 11:31:31,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2022-11-16 11:31:31,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 106 transitions. [2022-11-16 11:31:31,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:31:31,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 106 transitions. [2022-11-16 11:31:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 106 transitions. [2022-11-16 11:31:31,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2022-11-16 11:31:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.05) internal successors, (63), 59 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-11-16 11:31:31,883 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-11-16 11:31:31,884 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-11-16 11:31:31,884 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:31:31,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 63 transitions. [2022-11-16 11:31:31,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:31:31,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:31,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:31,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 11:31:31,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:31:31,885 INFO L748 eck$LassoCheckResult]: Stem: 736#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 737#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 745#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 747#L28-3 [2022-11-16 11:31:31,885 INFO L750 eck$LassoCheckResult]: Loop: 747#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 732#L18 assume !(0 == __VERIFIER_assert_~cond#1); 733#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 738#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 740#L18-5 assume { :end_inline___VERIFIER_assert } true; 741#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 747#L28-3 [2022-11-16 11:31:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2022-11-16 11:31:31,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:31,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094687024] [2022-11-16 11:31:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:31,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:31,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:31,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1426785425, now seen corresponding path program 1 times [2022-11-16 11:31:31,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:31,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567474982] [2022-11-16 11:31:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:31,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:31,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:31,934 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:31,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash -181476169, now seen corresponding path program 1 times [2022-11-16 11:31:31,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:31,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435566296] [2022-11-16 11:31:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:31,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:31,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:31,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:32,029 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:31:32,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:31:32,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:31:32,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:31:32,029 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:31:32,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:31:32,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:31:32,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2022-11-16 11:31:32,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:31:32,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:31:32,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,036 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,040 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,084 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:31:32,084 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:31:32,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,088 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:31:32,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:32,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:32,131 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:31:32,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:31:32,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:31:32,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:32,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:32,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:31:32,170 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:31:32,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,183 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:31:32,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:32,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:32,220 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:31:32,220 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:31:32,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,228 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:32,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:32,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:31:32,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,277 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:31:32,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:32,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:31:32,328 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:31:32,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,337 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:31:32,337 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:31:32,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:31:32,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:31:32,337 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:31:32,337 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,337 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:31:32,337 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:31:32,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2022-11-16 11:31:32,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:31:32,338 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:31:32,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,346 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,354 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:31:32,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:31:32,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,408 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:32,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:32,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:32,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:32,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:32,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:32,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:32,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:32,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:31:32,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:31:32,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,441 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:31:32,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:32,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:32,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:32,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:32,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:32,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:32,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:32,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:32,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:31:32,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,481 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:31:32,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:32,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:32,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:32,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:32,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:32,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:32,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:32,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:32,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:31:32,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,524 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:31:32,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:32,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:32,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:32,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:32,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:32,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:32,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:32,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:32,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:31:32,572 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:31:32,573 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:31:32,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:32,576 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:32,584 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:31:32,585 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:31:32,585 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:31:32,585 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2022-11-16 11:31:32,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:31:32,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,594 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:31:32,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:32,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:31:32,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:32,669 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 11:31:32,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5. 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) Result 165 states and 172 transitions. Complement of second has 7 states. [2022-11-16 11:31:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:31:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-16 11:31:32,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-16 11:31:32,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:32,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-16 11:31:32,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:32,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 12 letters. [2022-11-16 11:31:32,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:32,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 172 transitions. [2022-11-16 11:31:32,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:31:32,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 111 states and 115 transitions. [2022-11-16 11:31:32,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-16 11:31:32,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-16 11:31:32,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 115 transitions. [2022-11-16 11:31:32,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:31:32,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 115 transitions. [2022-11-16 11:31:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 115 transitions. [2022-11-16 11:31:32,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 60. [2022-11-16 11:31:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 59 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-11-16 11:31:32,722 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-11-16 11:31:32,723 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-11-16 11:31:32,723 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 11:31:32,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 62 transitions. [2022-11-16 11:31:32,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:31:32,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:31:32,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:31:32,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1] [2022-11-16 11:31:32,727 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:31:32,727 INFO L748 eck$LassoCheckResult]: Stem: 1011#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1012#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 1019#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1020#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1009#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1010#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1014#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1017#L18-5 assume { :end_inline___VERIFIER_assert } true; 1018#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1023#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1066#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1065#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1064#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1063#L18-5 assume { :end_inline___VERIFIER_assert } true; 1062#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1061#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1060#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1059#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1058#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1057#L18-5 assume { :end_inline___VERIFIER_assert } true; 1056#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1055#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1054#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1053#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1052#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1051#L18-5 assume { :end_inline___VERIFIER_assert } true; 1050#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1049#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1048#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1047#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1046#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1045#L18-5 assume { :end_inline___VERIFIER_assert } true; 1044#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1043#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1042#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1041#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1040#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1039#L18-5 assume { :end_inline___VERIFIER_assert } true; 1038#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1037#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1036#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1035#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1034#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1033#L18-5 assume { :end_inline___VERIFIER_assert } true; 1032#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1031#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1026#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1030#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1029#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1028#L18-5 assume { :end_inline___VERIFIER_assert } true; 1027#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1025#L28-3 assume !(main_~j~0#1 < 8); 1024#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1021#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1022#L28-3 [2022-11-16 11:31:32,728 INFO L750 eck$LassoCheckResult]: Loop: 1022#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1007#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1008#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1013#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1015#L18-5 assume { :end_inline___VERIFIER_assert } true; 1016#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1022#L28-3 [2022-11-16 11:31:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1852819737, now seen corresponding path program 2 times [2022-11-16 11:31:32,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478629234] [2022-11-16 11:31:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:32,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:32,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1426785425, now seen corresponding path program 2 times [2022-11-16 11:31:32,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72095040] [2022-11-16 11:31:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:32,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:32,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:32,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1846282505, now seen corresponding path program 3 times [2022-11-16 11:31:32,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575813469] [2022-11-16 11:31:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:32,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:31:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:31:32,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:31:32,950 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:31:32,950 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:31:32,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:31:32,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:31:32,951 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:31:32,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:32,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:31:32,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:31:32,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2022-11-16 11:31:32,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:31:32,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:31:32,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:32,966 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:33,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:31:33,011 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:31:33,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:33,016 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:33,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:33,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:33,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 11:31:33,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:31:33,045 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:31:33,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:33,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:33,049 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:33,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 11:31:33,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:31:33,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:33,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:33,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:33,100 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:33,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:31:33,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:31:33,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:31:33,143 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:31:33,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:33,147 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:31:33,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:31:33,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:31:33,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:31:33,147 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:31:33,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:31:33,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:31:33,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2022-11-16 11:31:33,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:31:33,148 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:31:33,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:33,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:33,158 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:33,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:31:33,222 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:31:33,222 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:31:33,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:33,223 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:33,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:33,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:31:33,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:33,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:33,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:33,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:33,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:33,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:33,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:33,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:31:33,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:33,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:33,269 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:33,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:31:33,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:31:33,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:31:33,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:31:33,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:31:33,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:31:33,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:31:33,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:31:33,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:31:33,311 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:31:33,315 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:31:33,315 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:31:33,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:31:33,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:33,317 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:31:33,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:31:33,320 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:31:33,320 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:31:33,320 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2022-11-16 11:31:33,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:31:33,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:33,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:31:33,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:33,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:31:33,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:33,502 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 11:31:33,502 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,516 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 158 transitions. Complement of second has 7 states. [2022-11-16 11:31:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:31:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-16 11:31:33,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2022-11-16 11:31:33,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:33,518 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:31:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:33,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:31:33,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:33,655 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 11:31:33,656 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,669 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 158 transitions. Complement of second has 7 states. [2022-11-16 11:31:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:31:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-16 11:31:33,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2022-11-16 11:31:33,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:33,671 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:31:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:33,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:31:33,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:33,827 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 11:31:33,827 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,846 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 112 transitions. Complement of second has 6 states. [2022-11-16 11:31:33,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:31:33,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-11-16 11:31:33,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 6 letters. [2022-11-16 11:31:33,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:33,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 60 letters. Loop has 6 letters. [2022-11-16 11:31:33,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:33,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 12 letters. [2022-11-16 11:31:33,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:31:33,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 112 transitions. [2022-11-16 11:31:33,854 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:31:33,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 0 states and 0 transitions. [2022-11-16 11:31:33,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:31:33,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:31:33,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:31:33,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:33,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:31:33,855 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:31:33,856 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:31:33,856 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-16 11:31:33,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:31:33,856 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:31:33,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:31:33,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:31:33 BoogieIcfgContainer [2022-11-16 11:31:33,863 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:31:33,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:31:33,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:31:33,864 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:31:33,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:31:28" (3/4) ... [2022-11-16 11:31:33,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:31:33,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:31:33,868 INFO L158 Benchmark]: Toolchain (without parser) took 6149.85ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 72.0MB in the beginning and 62.8MB in the end (delta: 9.2MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2022-11-16 11:31:33,868 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:31:33,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.45ms. Allocated memory is still 104.9MB. Free memory was 71.8MB in the beginning and 81.1MB in the end (delta: -9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:31:33,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.52ms. Allocated memory is still 104.9MB. Free memory was 81.1MB in the beginning and 79.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:31:33,870 INFO L158 Benchmark]: Boogie Preprocessor took 19.55ms. Allocated memory is still 104.9MB. Free memory was 79.4MB in the beginning and 78.5MB in the end (delta: 855.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:31:33,870 INFO L158 Benchmark]: RCFGBuilder took 264.85ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 68.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:31:33,871 INFO L158 Benchmark]: BuchiAutomizer took 5566.45ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 68.9MB in the beginning and 62.8MB in the end (delta: 6.1MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2022-11-16 11:31:33,871 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 161.5MB. Free memory is still 62.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:31:33,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.45ms. Allocated memory is still 104.9MB. Free memory was 71.8MB in the beginning and 81.1MB in the end (delta: -9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.52ms. Allocated memory is still 104.9MB. Free memory was 81.1MB in the beginning and 79.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.55ms. Allocated memory is still 104.9MB. Free memory was 79.4MB in the beginning and 78.5MB in the end (delta: 855.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.85ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 68.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5566.45ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 68.9MB in the beginning and 62.8MB in the end (delta: 6.1MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 161.5MB. Free memory is still 62.8MB. There was no memory consumed. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + nlen and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 15 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * j + 15 and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 7 iterations. TraceHistogramMax:8. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 99 StatesRemovedByMinimization, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 176/176 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 84 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:31:33,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:34,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:34,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:31:34,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8737b37f-f04f-4c0b-bff9-b9abe8c0cf68/bin/uautomizer-tPACEb0tL8/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 Result: TRUE