./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a 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_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:09:19,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:09:19,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:09:19,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:09:19,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:09:19,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:09:19,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:09:19,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:09:19,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:09:19,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:09:19,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:09:19,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:09:19,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:09:19,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:09:19,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:09:19,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:09:19,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:09:19,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:09:19,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:09:19,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:09:19,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:09:19,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:09:19,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:09:19,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:09:19,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:09:19,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:09:19,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:09:19,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:09:19,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:09:19,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:09:19,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:09:19,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:09:19,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:09:19,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:09:19,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:09:19,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:09:19,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:09:19,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:09:19,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:09:19,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:09:19,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:09:19,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 17:09:19,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:09:19,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:09:19,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:09:19,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:09:19,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:09:19,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:09:19,600 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:09:19,600 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:09:19,601 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:09:19,601 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:09:19,601 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:09:19,601 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:09:19,602 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:09:19,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:09:19,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:09:19,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:09:19,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:09:19,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:09:19,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:09:19,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:09:19,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:09:19,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:09:19,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:09:19,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:09:19,604 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:09:19,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:09:19,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:09:19,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:09:19,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:09:19,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:09:19,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:09:19,607 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:09:19,607 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_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2022-11-25 17:09:19,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:09:19,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:09:19,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:09:19,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:09:19,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:09:19,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-11-25 17:09:23,150 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:09:23,365 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:09:23,366 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2022-11-25 17:09:23,373 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/data/7d2a483d7/9d5f2b854b974fd39fa87ecc69c4dc48/FLAGe7a102fbc [2022-11-25 17:09:23,389 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/data/7d2a483d7/9d5f2b854b974fd39fa87ecc69c4dc48 [2022-11-25 17:09:23,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:09:23,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:09:23,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:09:23,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:09:23,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:09:23,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e2a94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23, skipping insertion in model container [2022-11-25 17:09:23,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:09:23,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:09:23,579 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-11-25 17:09:23,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:09:23,594 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:09:23,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-11-25 17:09:23,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:09:23,628 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:09:23,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23 WrapperNode [2022-11-25 17:09:23,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:09:23,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:09:23,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:09:23,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:09:23,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,663 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-11-25 17:09:23,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:09:23,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:09:23,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:09:23,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:09:23,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:09:23,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:09:23,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:09:23,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:09:23,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (1/1) ... [2022-11-25 17:09:23,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:23,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:23,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:23,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:09:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:09:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:09:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:09:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:09:23,834 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:09:23,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:09:24,058 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:09:24,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:09:24,066 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:09:24,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:24 BoogieIcfgContainer [2022-11-25 17:09:24,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:09:24,070 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:09:24,070 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:09:24,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:09:24,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:09:24,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:09:23" (1/3) ... [2022-11-25 17:09:24,077 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66cb2a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:09:24, skipping insertion in model container [2022-11-25 17:09:24,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:09:24,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:23" (2/3) ... [2022-11-25 17:09:24,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66cb2a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:09:24, skipping insertion in model container [2022-11-25 17:09:24,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:09:24,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:24" (3/3) ... [2022-11-25 17:09:24,080 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2022-11-25 17:09:24,140 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:09:24,141 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:09:24,141 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:09:24,141 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:09:24,141 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:09:24,142 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:09:24,142 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:09:24,142 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:09:24,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:24,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-25 17:09:24,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:24,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:24,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:09:24,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-25 17:09:24,175 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:09:24,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:24,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-25 17:09:24,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:24,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:24,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:09:24,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-25 17:09:24,187 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6#L111true [2022-11-25 17:09:24,187 INFO L750 eck$LassoCheckResult]: Loop: 6#L111true assume !false; 4#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 12#L36true assume 8466 == main_~s__state~0#1; 14#L37true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#L111true [2022-11-25 17:09:24,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-25 17:09:24,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:24,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493976408] [2022-11-25 17:09:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:24,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:24,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:24,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:24,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:24,325 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2022-11-25 17:09:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:24,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175605992] [2022-11-25 17:09:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:24,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:24,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:24,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:24,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:24,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2022-11-25 17:09:24,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:24,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211291445] [2022-11-25 17:09:24,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:24,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:24,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:24,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:24,511 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:24,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:24,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:24,512 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:24,512 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:09:24,512 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:24,512 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:24,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:24,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-11-25 17:09:24,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:24,513 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:24,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:24,584 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:24,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:24,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:24,691 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:09:24,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:24,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:24,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:24,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 17:09:24,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:24,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:24,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:24,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:24,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:24,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:09:24,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:24,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 17:09:24,786 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:09:24,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:24,791 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:24,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:24,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:24,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:24,792 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:09:24,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:24,792 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:24,792 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:24,792 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2022-11-25 17:09:24,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:24,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:24,794 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:24,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:24,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:24,883 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:24,888 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:09:24,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:24,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:24,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:24,904 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 [2022-11-25 17:09:24,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:24,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:24,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:24,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:24,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:24,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:24,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:24,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 17:09:24,936 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:09:24,944 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:09:24,944 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:09:24,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:24,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:24,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:24,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 17:09:24,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:09:24,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:09:24,975 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:09:24,975 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -1*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2022-11-25 17:09:24,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-25 17:09:24,986 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:09:25,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:25,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:09:25,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:25,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:09:25,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:25,221 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 [2022-11-25 17:09:25,224 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:25,307 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 84 transitions. Complement of second has 5 states. [2022-11-25 17:09:25,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-25 17:09:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-11-25 17:09:25,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 5 letters. [2022-11-25 17:09:25,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:25,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 7 letters. Loop has 5 letters. [2022-11-25 17:09:25,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:25,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 46 transitions. Stem has 2 letters. Loop has 10 letters. [2022-11-25 17:09:25,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:25,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 84 transitions. [2022-11-25 17:09:25,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-25 17:09:25,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 38 states and 59 transitions. [2022-11-25 17:09:25,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-25 17:09:25,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-25 17:09:25,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2022-11-25 17:09:25,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:25,331 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2022-11-25 17:09:25,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2022-11-25 17:09:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-11-25 17:09:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-11-25 17:09:25,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-11-25 17:09:25,361 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-11-25 17:09:25,361 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:09:25,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2022-11-25 17:09:25,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-25 17:09:25,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:25,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:25,364 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 17:09:25,364 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-25 17:09:25,364 INFO L748 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 147#L111 assume !false; 119#L30 [2022-11-25 17:09:25,364 INFO L750 eck$LassoCheckResult]: Loop: 119#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 120#L36 assume 8466 == main_~s__state~0#1; 143#L37 assume !(0 == main_~blastFlag~0#1); 150#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 129#L111 assume !false; 119#L30 [2022-11-25 17:09:25,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-25 17:09:25,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:25,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269443092] [2022-11-25 17:09:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:25,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:25,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:25,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2022-11-25 17:09:25,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:25,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277179876] [2022-11-25 17:09:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:25,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:25,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:25,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:25,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2022-11-25 17:09:25,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:25,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260930642] [2022-11-25 17:09:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:25,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:25,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:25,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260930642] [2022-11-25 17:09:25,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260930642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:25,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:25,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455953130] [2022-11-25 17:09:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:25,490 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:25,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:25,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:25,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:25,491 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:09:25,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:25,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:25,491 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-11-25 17:09:25,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:25,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:25,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:25,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:25,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:25,560 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:25,560 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:09:25,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:25,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:25,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 17:09:25,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:25,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:25,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:09:25,626 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:09:25,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:25,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:25,638 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:25,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 17:09:25,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:25,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:25,670 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:09:25,670 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:09:25,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:25,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:25,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:25,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 17:09:25,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:25,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:25,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:25,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:25,729 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:25,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 17:09:25,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:09:25,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:25,765 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:09:25,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:25,768 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:25,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:25,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:25,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:25,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:09:25,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:25,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:25,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2022-11-25 17:09:25,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:25,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:25,770 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:25,791 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:25,795 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:25,862 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:25,862 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:09:25,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:25,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:25,885 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 [2022-11-25 17:09:25,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:25,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:25,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:25,898 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-25 17:09:25,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:25,899 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-25 17:09:25,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:25,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 17:09:25,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:09:25,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:25,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:25,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:25,971 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,003 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 [2022-11-25 17:09:26,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:26,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:26,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:26,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:26,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:26,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:26,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:26,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 17:09:26,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:09:26,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,045 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,049 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 [2022-11-25 17:09:26,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-25 17:09:26,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:26,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:26,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:26,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:26,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:26,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:26,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:26,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:09:26,072 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:09:26,072 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:09:26,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,079 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:09:26,081 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:09:26,082 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:09:26,082 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8489 Supporting invariants [] [2022-11-25 17:09:26,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-25 17:09:26,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-25 17:09:26,092 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:09:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:26,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:09:26,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:26,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:09:26,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:26,199 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 17:09:26,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:26,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 155 transitions. Complement of second has 7 states. [2022-11-25 17:09:26,288 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 [2022-11-25 17:09:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:26,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-11-25 17:09:26,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 5 letters. [2022-11-25 17:09:26,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:26,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 8 letters. Loop has 5 letters. [2022-11-25 17:09:26,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:26,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 10 letters. [2022-11-25 17:09:26,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:26,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 155 transitions. [2022-11-25 17:09:26,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-25 17:09:26,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 77 states and 121 transitions. [2022-11-25 17:09:26,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-11-25 17:09:26,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-11-25 17:09:26,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 121 transitions. [2022-11-25 17:09:26,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:26,304 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 121 transitions. [2022-11-25 17:09:26,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 121 transitions. [2022-11-25 17:09:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-11-25 17:09:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 53 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2022-11-25 17:09:26,312 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2022-11-25 17:09:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:26,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:26,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:26,316 INFO L87 Difference]: Start difference. First operand 54 states and 86 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:26,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:26,355 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2022-11-25 17:09:26,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2022-11-25 17:09:26,357 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-25 17:09:26,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2022-11-25 17:09:26,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-11-25 17:09:26,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-11-25 17:09:26,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2022-11-25 17:09:26,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:26,359 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2022-11-25 17:09:26,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2022-11-25 17:09:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-11-25 17:09:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 84 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:26,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2022-11-25 17:09:26,366 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-11-25 17:09:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:26,367 INFO L428 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2022-11-25 17:09:26,367 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 17:09:26,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2022-11-25 17:09:26,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-25 17:09:26,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:26,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:26,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 17:09:26,370 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:09:26,370 INFO L748 eck$LassoCheckResult]: Stem: 457#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 458#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 479#L111 assume !false; 453#L30 [2022-11-25 17:09:26,370 INFO L750 eck$LassoCheckResult]: Loop: 453#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 454#L36 assume !(8466 == main_~s__state~0#1); 476#L41 assume 8512 == main_~s__state~0#1; 480#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 474#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 463#L111 assume !false; 453#L30 [2022-11-25 17:09:26,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2022-11-25 17:09:26,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:26,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588687828] [2022-11-25 17:09:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:26,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:26,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:26,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:26,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2022-11-25 17:09:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:26,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304866241] [2022-11-25 17:09:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:26,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:26,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:26,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:26,399 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2022-11-25 17:09:26,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:26,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144472886] [2022-11-25 17:09:26,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:26,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:26,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:26,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144472886] [2022-11-25 17:09:26,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144472886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:26,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:26,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:26,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540034999] [2022-11-25 17:09:26,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:26,474 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:26,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:26,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:26,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:26,475 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:09:26,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:26,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:26,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-11-25 17:09:26,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:26,476 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:26,477 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:26,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:26,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:26,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:26,587 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:09:26,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,591 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-25 17:09:26,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:26,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:26,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:09:26,613 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=2} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:09:26,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,617 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-25 17:09:26,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:26,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:26,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:09:26,643 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=-4, ULTIMATE.start_main_~tmp___1~0#1=-4} Honda state: {ULTIMATE.start_main_#t~nondet5#1=-4, ULTIMATE.start_main_~tmp___1~0#1=-4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:09:26,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,648 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-25 17:09:26,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:26,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:26,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,683 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-25 17:09:26,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:09:26,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:26,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:09:26,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,705 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:26,706 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:26,706 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:26,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:26,706 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:09:26,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:26,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:26,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2022-11-25 17:09:26,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:26,706 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:26,707 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:26,714 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:26,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:26,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:26,785 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:09:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,787 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,801 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 [2022-11-25 17:09:26,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-25 17:09:26,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:26,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:26,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:26,815 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-25 17:09:26,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:26,817 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-25 17:09:26,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:26,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:09:26,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,839 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,852 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 [2022-11-25 17:09:26,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-25 17:09:26,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:26,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:26,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:26,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:26,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:26,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:26,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:26,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:09:26,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,901 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-25 17:09:26,911 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 [2022-11-25 17:09:26,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:26,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:26,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:26,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:26,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:26,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:26,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:26,935 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:09:26,940 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 17:09:26,940 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:09:26,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:26,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:26,941 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:26,956 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:09:26,956 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:09:26,956 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:09:26,956 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-11-25 17:09:26,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-25 17:09:26,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:26,966 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:09:26,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:27,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:09:27,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:27,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:09:27,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:27,065 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 17:09:27,065 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,179 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 170 states and 232 transitions. Complement of second has 9 states. [2022-11-25 17:09:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 17:09:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2022-11-25 17:09:27,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-25 17:09:27,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:27,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-25 17:09:27,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:27,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 12 letters. [2022-11-25 17:09:27,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:27,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 232 transitions. [2022-11-25 17:09:27,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-11-25 17:09:27,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 141 states and 196 transitions. [2022-11-25 17:09:27,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2022-11-25 17:09:27,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-25 17:09:27,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 196 transitions. [2022-11-25 17:09:27,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:27,188 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 196 transitions. [2022-11-25 17:09:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 196 transitions. [2022-11-25 17:09:27,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2022-11-25 17:09:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 104 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2022-11-25 17:09:27,196 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 148 transitions. [2022-11-25 17:09:27,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:27,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:27,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:27,197 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:27,219 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions. [2022-11-25 17:09:27,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 94 transitions. [2022-11-25 17:09:27,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-11-25 17:09:27,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 61 states and 90 transitions. [2022-11-25 17:09:27,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-25 17:09:27,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-11-25 17:09:27,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2022-11-25 17:09:27,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:27,226 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-11-25 17:09:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2022-11-25 17:09:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-25 17:09:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 60 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2022-11-25 17:09:27,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-11-25 17:09:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:27,233 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2022-11-25 17:09:27,233 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 17:09:27,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2022-11-25 17:09:27,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2022-11-25 17:09:27,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:27,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:27,236 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:27,236 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:09:27,237 INFO L748 eck$LassoCheckResult]: Stem: 938#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 939#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 944#L111 assume !false; 945#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 965#L36 assume 8466 == main_~s__state~0#1; 966#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 984#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 980#L111 assume !false; 979#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 977#L36 assume !(8466 == main_~s__state~0#1); 972#L41 [2022-11-25 17:09:27,237 INFO L750 eck$LassoCheckResult]: Loop: 972#L41 assume 8512 == main_~s__state~0#1; 967#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 958#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 960#L111 assume !false; 934#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 935#L36 assume !(8466 == main_~s__state~0#1); 972#L41 [2022-11-25 17:09:27,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:27,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2022-11-25 17:09:27,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:27,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279075372] [2022-11-25 17:09:27,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:27,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:27,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:27,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:27,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2022-11-25 17:09:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:27,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234361406] [2022-11-25 17:09:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:27,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:27,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:27,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2022-11-25 17:09:27,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:27,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437246751] [2022-11-25 17:09:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:27,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:27,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:27,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437246751] [2022-11-25 17:09:27,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437246751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:27,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:27,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:27,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134286611] [2022-11-25 17:09:27,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:27,361 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:27,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:27,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:27,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:27,361 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:09:27,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:27,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:27,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-11-25 17:09:27,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:27,362 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:27,363 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:27,375 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:27,409 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:27,410 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:09:27,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:27,411 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:27,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-25 17:09:27,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:27,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:27,446 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:09:27,446 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0, ULTIMATE.start_main_~tmp___1~0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0, ULTIMATE.start_main_~tmp___1~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:09:27,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:27,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:27,457 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:27,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:27,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:27,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-25 17:09:27,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:27,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:27,501 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:27,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:09:27,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:27,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-25 17:09:27,529 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:09:27,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:27,538 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:27,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:27,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:27,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:27,538 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:09:27,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,538 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:27,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:27,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2022-11-25 17:09:27,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:27,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:27,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:27,546 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:27,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:27,587 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:09:27,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:27,588 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:27,592 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 [2022-11-25 17:09:27,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-25 17:09:27,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:27,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:27,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:27,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:27,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:27,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:27,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:27,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:09:27,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:27,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:27,627 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:27,632 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 [2022-11-25 17:09:27,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-25 17:09:27,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:27,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:27,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:27,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:27,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:27,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:27,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:27,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:09:27,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:09:27,670 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:09:27,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:27,672 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:27,675 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:09:27,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:09:27,676 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:09:27,676 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8576 Supporting invariants [] [2022-11-25 17:09:27,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-25 17:09:27,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:27,685 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:09:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:27,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:09:27,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:27,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:09:27,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:27,781 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-25 17:09:27,781 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 183 states and 281 transitions. Complement of second has 9 states. [2022-11-25 17:09:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-25 17:09:27,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-11-25 17:09:27,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-25 17:09:27,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:27,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-25 17:09:27,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:27,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 10 letters. Loop has 12 letters. [2022-11-25 17:09:27,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:27,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 281 transitions. [2022-11-25 17:09:27,896 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-11-25 17:09:27,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 163 states and 245 transitions. [2022-11-25 17:09:27,898 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-25 17:09:27,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-11-25 17:09:27,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 245 transitions. [2022-11-25 17:09:27,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:27,899 INFO L218 hiAutomatonCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-11-25 17:09:27,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 245 transitions. [2022-11-25 17:09:27,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 125. [2022-11-25 17:09:27,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2022-11-25 17:09:27,918 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-25 17:09:27,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:27,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:27,920 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:27,957 INFO L93 Difference]: Finished difference Result 164 states and 223 transitions. [2022-11-25 17:09:27,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 223 transitions. [2022-11-25 17:09:27,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2022-11-25 17:09:27,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 211 transitions. [2022-11-25 17:09:27,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2022-11-25 17:09:27,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-11-25 17:09:27,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 211 transitions. [2022-11-25 17:09:27,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:27,962 INFO L218 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2022-11-25 17:09:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 211 transitions. [2022-11-25 17:09:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2022-11-25 17:09:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 133 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:27,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2022-11-25 17:09:27,969 INFO L240 hiAutomatonCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-11-25 17:09:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:27,974 INFO L428 stractBuchiCegarLoop]: Abstraction has 134 states and 191 transitions. [2022-11-25 17:09:27,974 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-25 17:09:27,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 191 transitions. [2022-11-25 17:09:27,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2022-11-25 17:09:27,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:27,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:27,976 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:27,976 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:27,976 INFO L748 eck$LassoCheckResult]: Stem: 1548#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1573#L111 assume !false; 1675#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1674#L36 assume 8466 == main_~s__state~0#1; 1643#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1641#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1554#L111 [2022-11-25 17:09:27,976 INFO L750 eck$LassoCheckResult]: Loop: 1554#L111 assume !false; 1544#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1545#L36 assume !(8466 == main_~s__state~0#1); 1571#L41 assume !(8512 == main_~s__state~0#1); 1586#L57 assume !(8640 == main_~s__state~0#1); 1550#L61 assume 8656 == main_~s__state~0#1; 1551#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1560#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1562#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1568#L111 assume !false; 1618#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1619#L36 assume 8466 == main_~s__state~0#1; 1576#L37 assume !(0 == main_~blastFlag~0#1); 1577#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1554#L111 [2022-11-25 17:09:27,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2022-11-25 17:09:27,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:27,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126758262] [2022-11-25 17:09:27,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:27,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:27,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2022-11-25 17:09:28,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937562552] [2022-11-25 17:09:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:28,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:28,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937562552] [2022-11-25 17:09:28,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937562552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:28,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:28,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:28,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628616579] [2022-11-25 17:09:28,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:28,052 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:09:28,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:28,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:28,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:28,053 INFO L87 Difference]: Start difference. First operand 134 states and 191 transitions. cyclomatic complexity: 65 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:28,082 INFO L93 Difference]: Finished difference Result 182 states and 254 transitions. [2022-11-25 17:09:28,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 254 transitions. [2022-11-25 17:09:28,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-11-25 17:09:28,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 254 transitions. [2022-11-25 17:09:28,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2022-11-25 17:09:28,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-11-25 17:09:28,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2022-11-25 17:09:28,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:28,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-11-25 17:09:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2022-11-25 17:09:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-25 17:09:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.3956043956043955) internal successors, (254), 181 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 254 transitions. [2022-11-25 17:09:28,110 INFO L240 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-11-25 17:09:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:28,114 INFO L428 stractBuchiCegarLoop]: Abstraction has 182 states and 254 transitions. [2022-11-25 17:09:28,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-25 17:09:28,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 254 transitions. [2022-11-25 17:09:28,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2022-11-25 17:09:28,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:28,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:28,116 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,116 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,116 INFO L748 eck$LassoCheckResult]: Stem: 1870#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1871#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1876#L111 assume !false; 1877#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1993#L36 assume 8466 == main_~s__state~0#1; 1990#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1987#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1938#L111 [2022-11-25 17:09:28,117 INFO L750 eck$LassoCheckResult]: Loop: 1938#L111 assume !false; 1955#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1953#L36 assume !(8466 == main_~s__state~0#1); 1950#L41 assume !(8512 == main_~s__state~0#1); 1947#L57 assume !(8640 == main_~s__state~0#1); 1872#L61 assume 8656 == main_~s__state~0#1; 1873#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1879#L100-1 assume !(4 == main_~blastFlag~0#1); 1880#L107 assume !(5 == main_~blastFlag~0#1); 1917#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1918#L111 assume !false; 1976#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1977#L36 assume 8466 == main_~s__state~0#1; 1963#L37 assume !(0 == main_~blastFlag~0#1); 1960#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1938#L111 [2022-11-25 17:09:28,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2022-11-25 17:09:28,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522084788] [2022-11-25 17:09:28,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:28,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2022-11-25 17:09:28,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468374649] [2022-11-25 17:09:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:28,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:28,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468374649] [2022-11-25 17:09:28,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468374649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:28,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:28,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:28,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791466715] [2022-11-25 17:09:28,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:28,195 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:09:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:28,195 INFO L87 Difference]: Start difference. First operand 182 states and 254 transitions. cyclomatic complexity: 80 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:28,226 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2022-11-25 17:09:28,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 202 transitions. [2022-11-25 17:09:28,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-11-25 17:09:28,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 111 states and 141 transitions. [2022-11-25 17:09:28,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2022-11-25 17:09:28,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-25 17:09:28,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 141 transitions. [2022-11-25 17:09:28,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:28,230 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 141 transitions. [2022-11-25 17:09:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 141 transitions. [2022-11-25 17:09:28,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2022-11-25 17:09:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.276190476190476) internal successors, (134), 104 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2022-11-25 17:09:28,235 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-11-25 17:09:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:28,236 INFO L428 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2022-11-25 17:09:28,237 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-25 17:09:28,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2022-11-25 17:09:28,253 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-11-25 17:09:28,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:28,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:28,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:28,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,265 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,265 INFO L748 eck$LassoCheckResult]: Stem: 2211#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2212#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2229#L111 assume !false; 2296#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2231#L36 assume 8466 == main_~s__state~0#1; 2232#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2263#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2250#L111 [2022-11-25 17:09:28,265 INFO L750 eck$LassoCheckResult]: Loop: 2250#L111 assume !false; 2304#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2301#L36 assume !(8466 == main_~s__state~0#1); 2299#L41 assume !(8512 == main_~s__state~0#1); 2248#L57 assume !(8640 == main_~s__state~0#1); 2217#L61 assume 8656 == main_~s__state~0#1; 2218#L62 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2223#L100-1 assume !(4 == main_~blastFlag~0#1); 2224#L107 assume !(5 == main_~blastFlag~0#1); 2239#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2219#L111 assume !false; 2213#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2214#L36 assume !(8466 == main_~s__state~0#1); 2230#L41 assume !(8512 == main_~s__state~0#1); 2240#L57 assume 8640 == main_~s__state~0#1; 2298#L58 assume !(3 == main_~blastFlag~0#1); 2249#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2250#L111 [2022-11-25 17:09:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2022-11-25 17:09:28,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536106625] [2022-11-25 17:09:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:28,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:28,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2022-11-25 17:09:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907925311] [2022-11-25 17:09:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:28,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:28,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907925311] [2022-11-25 17:09:28,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907925311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:28,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:28,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:28,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111649059] [2022-11-25 17:09:28,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:28,335 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:09:28,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:28,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:28,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:28,336 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:28,355 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2022-11-25 17:09:28,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2022-11-25 17:09:28,356 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-11-25 17:09:28,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2022-11-25 17:09:28,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2022-11-25 17:09:28,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-11-25 17:09:28,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2022-11-25 17:09:28,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:28,358 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-11-25 17:09:28,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2022-11-25 17:09:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-25 17:09:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 115 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2022-11-25 17:09:28,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-11-25 17:09:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:28,363 INFO L428 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2022-11-25 17:09:28,363 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-25 17:09:28,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2022-11-25 17:09:28,364 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2022-11-25 17:09:28,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:28,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:28,364 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,365 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,365 INFO L748 eck$LassoCheckResult]: Stem: 2438#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2446#L111 assume !false; 2442#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2443#L36 assume 8466 == main_~s__state~0#1; 2459#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2490#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2476#L111 [2022-11-25 17:09:28,365 INFO L750 eck$LassoCheckResult]: Loop: 2476#L111 assume !false; 2440#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2441#L36 assume !(8466 == main_~s__state~0#1); 2458#L41 assume !(8512 == main_~s__state~0#1); 2468#L57 assume !(8640 == main_~s__state~0#1); 2474#L61 assume 8656 == main_~s__state~0#1; 2505#L62 assume !(2 == main_~blastFlag~0#1); 2452#L100-1 assume !(4 == main_~blastFlag~0#1); 2453#L107 assume !(5 == main_~blastFlag~0#1); 2467#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2473#L111 assume !false; 2533#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2531#L36 assume !(8466 == main_~s__state~0#1); 2508#L41 assume !(8512 == main_~s__state~0#1); 2506#L57 assume 8640 == main_~s__state~0#1; 2507#L58 assume !(3 == main_~blastFlag~0#1); 2475#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2476#L111 [2022-11-25 17:09:28,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2022-11-25 17:09:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484677073] [2022-11-25 17:09:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:28,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2022-11-25 17:09:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308934699] [2022-11-25 17:09:28,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:28,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:28,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308934699] [2022-11-25 17:09:28,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308934699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:28,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:28,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:09:28,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704954749] [2022-11-25 17:09:28,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:28,399 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:09:28,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:28,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:28,400 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. cyclomatic complexity: 38 Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:28,408 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2022-11-25 17:09:28,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2022-11-25 17:09:28,409 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-11-25 17:09:28,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2022-11-25 17:09:28,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-11-25 17:09:28,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-11-25 17:09:28,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2022-11-25 17:09:28,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:28,411 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2022-11-25 17:09:28,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2022-11-25 17:09:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2022-11-25 17:09:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 108 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2022-11-25 17:09:28,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-11-25 17:09:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:28,416 INFO L428 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2022-11-25 17:09:28,416 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-25 17:09:28,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2022-11-25 17:09:28,417 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-11-25 17:09:28,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:28,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:28,418 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,418 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,418 INFO L748 eck$LassoCheckResult]: Stem: 2702#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2703#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2722#L111 assume !false; 2793#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2792#L36 assume 8466 == main_~s__state~0#1; 2760#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2757#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2710#L111 [2022-11-25 17:09:28,418 INFO L750 eck$LassoCheckResult]: Loop: 2710#L111 assume !false; 2704#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2705#L36 assume !(8466 == main_~s__state~0#1); 2723#L41 assume !(8512 == main_~s__state~0#1); 2733#L57 assume !(8640 == main_~s__state~0#1); 2740#L61 assume 8656 == main_~s__state~0#1; 2805#L62 assume !(2 == main_~blastFlag~0#1); 2716#L100-1 assume !(4 == main_~blastFlag~0#1); 2717#L107 assume !(5 == main_~blastFlag~0#1); 2739#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2710#L111 [2022-11-25 17:09:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2022-11-25 17:09:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630451295] [2022-11-25 17:09:28,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2022-11-25 17:09:28,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465700433] [2022-11-25 17:09:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:28,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,439 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2022-11-25 17:09:28,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136625193] [2022-11-25 17:09:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:28,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:09:28,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136625193] [2022-11-25 17:09:28,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136625193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:09:28,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:09:28,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:09:28,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93199137] [2022-11-25 17:09:28,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:09:28,509 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:28,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:28,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:28,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:28,509 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:09:28,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:28,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:28,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:28,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-11-25 17:09:28,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:28,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:28,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:28,516 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:28,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:28,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:28,604 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:09:28,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:28,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:28,605 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:28,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:09:28,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:28,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-25 17:09:28,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:28,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:28,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:28,647 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:28,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:09:28,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:09:28,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-25 17:09:28,695 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:09:28,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:28,704 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:09:28,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:09:28,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:09:28,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:09:28,704 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:09:28,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:28,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:09:28,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:09:28,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2022-11-25 17:09:28,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:09:28,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:09:28,705 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:28,712 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:28,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:09:28,806 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:09:28,806 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:09:28,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:28,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:28,811 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:28,815 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 [2022-11-25 17:09:28,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-25 17:09:28,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:09:28,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:09:28,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:09:28,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:09:28,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:09:28,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:09:28,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:09:28,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:09:28,850 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-25 17:09:28,850 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:09:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:09:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:09:28,852 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:09:28,856 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:09:28,856 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:09:28,856 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:09:28,856 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-11-25 17:09:28,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-25 17:09:28,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:28,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:09:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:09:28,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:09:28,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:09:28,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:09:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:09:28,935 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 [2022-11-25 17:09:28,935 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 178 transitions. Complement of second has 6 states. [2022-11-25 17:09:28,963 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 [2022-11-25 17:09:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2022-11-25 17:09:28,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2022-11-25 17:09:28,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:28,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2022-11-25 17:09:28,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:28,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2022-11-25 17:09:28,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:09:28,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2022-11-25 17:09:28,967 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2022-11-25 17:09:28,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2022-11-25 17:09:28,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-25 17:09:28,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-11-25 17:09:28,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2022-11-25 17:09:28,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:28,968 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-11-25 17:09:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2022-11-25 17:09:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-25 17:09:28,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 108 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2022-11-25 17:09:28,971 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-11-25 17:09:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:09:28,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:09:28,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:09:28,972 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:09:28,986 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2022-11-25 17:09:28,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2022-11-25 17:09:28,987 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-11-25 17:09:28,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2022-11-25 17:09:28,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-25 17:09:28,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-25 17:09:28,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2022-11-25 17:09:28,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:09:28,988 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-25 17:09:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2022-11-25 17:09:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-25 17:09:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 61 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:09:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2022-11-25 17:09:28,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-25 17:09:28,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:09:28,992 INFO L428 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-25 17:09:28,992 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-25 17:09:28,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2022-11-25 17:09:28,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2022-11-25 17:09:28,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:09:28,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:09:28,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:09:28,994 INFO L748 eck$LassoCheckResult]: Stem: 3239#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3240#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3243#L111 assume !false; 3235#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3236#L36 assume 8466 == main_~s__state~0#1; 3260#L37 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3261#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3267#L111 assume !false; 3245#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3289#L36 assume !(8466 == main_~s__state~0#1); 3284#L41 assume 8512 == main_~s__state~0#1; 3258#L42 [2022-11-25 17:09:28,994 INFO L750 eck$LassoCheckResult]: Loop: 3258#L42 main_~tmp___1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3250#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3251#L111 assume !false; 3293#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3292#L36 assume 8466 == main_~s__state~0#1; 3287#L37 assume !(0 == main_~blastFlag~0#1); 3291#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3290#L111 assume !false; 3288#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3286#L36 assume !(8466 == main_~s__state~0#1); 3285#L41 assume 8512 == main_~s__state~0#1; 3258#L42 [2022-11-25 17:09:28,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:28,995 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2022-11-25 17:09:28,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:28,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848019838] [2022-11-25 17:09:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:28,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:29,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:29,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2022-11-25 17:09:29,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:29,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346937387] [2022-11-25 17:09:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:29,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:09:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2022-11-25 17:09:29,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:09:29,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845299095] [2022-11-25 17:09:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:09:29,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:09:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:09:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:09:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:09:29,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:09:29 BoogieIcfgContainer [2022-11-25 17:09:29,381 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:09:29,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:09:29,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:09:29,382 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:09:29,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:24" (3/4) ... [2022-11-25 17:09:29,385 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 17:09:29,445 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:09:29,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:09:29,446 INFO L158 Benchmark]: Toolchain (without parser) took 6053.42ms. Allocated memory is still 169.9MB. Free memory was 126.4MB in the beginning and 60.8MB in the end (delta: 65.5MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,447 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:09:29,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.31ms. Allocated memory is still 169.9MB. Free memory was 126.0MB in the beginning and 115.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.85ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 113.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,448 INFO L158 Benchmark]: Boogie Preprocessor took 23.48ms. Allocated memory is still 169.9MB. Free memory was 113.8MB in the beginning and 112.9MB in the end (delta: 927.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,448 INFO L158 Benchmark]: RCFGBuilder took 379.74ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 102.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,448 INFO L158 Benchmark]: BuchiAutomizer took 5311.45ms. Allocated memory is still 169.9MB. Free memory was 102.4MB in the beginning and 62.9MB in the end (delta: 39.4MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,449 INFO L158 Benchmark]: Witness Printer took 63.81ms. Allocated memory is still 169.9MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:09:29,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.31ms. Allocated memory is still 169.9MB. Free memory was 126.0MB in the beginning and 115.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.85ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 113.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.48ms. Allocated memory is still 169.9MB. Free memory was 113.8MB in the beginning and 112.9MB in the end (delta: 927.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.74ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 102.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5311.45ms. Allocated memory is still 169.9MB. Free memory was 102.4MB in the beginning and 62.9MB in the end (delta: 39.4MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 63.81ms. Allocated memory is still 169.9MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * blastFlag + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8489 and consists of 4 locations. One deterministic module has affine ranking function s__state and consists of 5 locations. One deterministic module has affine ranking function 8576 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 13. Automata minimization 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 155 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 548 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 352 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf91 smp100 dnf180 smp78 tf112 neg93 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 76ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L29] COND TRUE 1 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0, s__state=8466] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2, s__state=8466] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L29] COND TRUE 1 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L29] COND TRUE 1 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0, s__state=8466] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2, s__state=8466] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L29] COND TRUE 1 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:09:29,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-25 17:09:29,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a719e768-41b5-494f-81f0-4baac1bf2b27/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)