./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8 --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 64bit --witnessprinter.graph.data.programhash 905898d576dbb9521171e998174a24819933fa88ed72107c9a2c3094e7696cea --- 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-2329fc7 [2022-12-13 11:50:25,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:50:25,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:50:25,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:50:25,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:50:25,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:50:25,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:50:25,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:50:25,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:50:25,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:50:25,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:50:25,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:50:25,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:50:25,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:50:25,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:50:25,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:50:25,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:50:25,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:50:25,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:50:25,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:50:25,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:50:25,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:50:25,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:50:25,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:50:25,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:50:25,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:50:25,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:50:25,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:50:25,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:50:25,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:50:25,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:50:25,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:50:25,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:50:25,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:50:25,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:50:25,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:50:25,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:50:25,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:50:25,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:50:25,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:50:25,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:50:25,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 11:50:25,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:50:25,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:50:25,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:50:25,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:50:25,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:50:25,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:50:25,342 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:50:25,342 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 11:50:25,342 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 11:50:25,342 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 11:50:25,342 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 11:50:25,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 11:50:25,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 11:50:25,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:50:25,344 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 11:50:25,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:50:25,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 11:50:25,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:50:25,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:50:25,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:50:25,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:50:25,345 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 11:50:25,345 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_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 905898d576dbb9521171e998174a24819933fa88ed72107c9a2c3094e7696cea [2022-12-13 11:50:25,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:50:25,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:50:25,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:50:25,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:50:25,530 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:50:25,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c [2022-12-13 11:50:28,238 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:50:28,395 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:50:28,395 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c [2022-12-13 11:50:28,400 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/data/17e90b590/7e4744c9256742f9a0cfd730cfc679e1/FLAGce3f47a74 [2022-12-13 11:50:28,411 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/data/17e90b590/7e4744c9256742f9a0cfd730cfc679e1 [2022-12-13 11:50:28,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:50:28,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:50:28,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:50:28,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:50:28,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:50:28,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b892640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28, skipping insertion in model container [2022-12-13 11:50:28,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:50:28,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:50:28,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:50:28,551 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:50:28,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:50:28,579 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:50:28,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28 WrapperNode [2022-12-13 11:50:28,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:50:28,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:50:28,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:50:28,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:50:28,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,614 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 79 [2022-12-13 11:50:28,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:50:28,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:50:28,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:50:28,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:50:28,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:50:28,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:50:28,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:50:28,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:50:28,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (1/1) ... [2022-12-13 11:50:28,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:28,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:28,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:28,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 11:50:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:50:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:50:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:50:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:50:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:50:28,764 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:50:28,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:50:28,893 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:50:28,899 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:50:28,899 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 11:50:28,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:50:28 BoogieIcfgContainer [2022-12-13 11:50:28,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:50:28,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 11:50:28,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 11:50:28,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 11:50:28,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 11:50:28,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 11:50:28" (1/3) ... [2022-12-13 11:50:28,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e14d1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 11:50:28, skipping insertion in model container [2022-12-13 11:50:28,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 11:50:28,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:28" (2/3) ... [2022-12-13 11:50:28,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e14d1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 11:50:28, skipping insertion in model container [2022-12-13 11:50:28,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 11:50:28,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:50:28" (3/3) ... [2022-12-13 11:50:28,910 INFO L332 chiAutomizerObserver]: Analyzing ICFG cstrpbrk.c [2022-12-13 11:50:28,963 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 11:50:28,963 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 11:50:28,963 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 11:50:28,964 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 11:50:28,964 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 11:50:28,964 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 11:50:28,964 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 11:50:28,964 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 11:50:28,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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) [2022-12-13 11:50:28,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 11:50:28,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:28,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:28,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:28,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 11:50:28,993 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 11:50:28,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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) [2022-12-13 11:50:28,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 11:50:28,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:28,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:28,997 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:28,997 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 11:50:29,004 INFO L748 eck$LassoCheckResult]: Stem: 16#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1.base, main_#t~ret12#1.offset;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 7#L14true assume !(build_nondet_String_~length~0#1 < 1); 19#L14-2true call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 2#build_nondet_String_returnLabel#1true main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 9#L14-3true assume build_nondet_String_~length~0#1 < 1;build_nondet_String_~length~0#1 := 1; 15#L14-5true call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 14#build_nondet_String_returnLabel#2true main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrpbrk } true;cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset, cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrpbrk_#res#1.base, cstrpbrk_#res#1.offset;havoc cstrpbrk_#t~mem4#1, cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset, cstrpbrk_#t~mem5#1, cstrpbrk_#t~mem6#1, cstrpbrk_#t~short7#1, cstrpbrk_#t~mem9#1, cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset, cstrpbrk_#t~mem3#1, cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset, cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset, cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, cstrpbrk_~c~0#1;cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset := cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset;cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset := cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset;havoc cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;havoc cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;havoc cstrpbrk_~c~0#1;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset; 17#L31-4true [2022-12-13 11:50:29,005 INFO L750 eck$LassoCheckResult]: Loop: 17#L31-4true call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 18#L31-1true assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 11#L34-5true assume !true; 4#L34-6true call cstrpbrk_#t~mem9#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1); 6#L36true assume !(cstrpbrk_#t~mem9#1 != cstrpbrk_~c~0#1);havoc cstrpbrk_#t~mem9#1; 10#L31-3true cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset := cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_#t~post2#1.base, 1 + cstrpbrk_#t~post2#1.offset;havoc cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset; 17#L31-4true [2022-12-13 11:50:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash 176610378, now seen corresponding path program 1 times [2022-12-13 11:50:29,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:29,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761682253] [2022-12-13 11:50:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:29,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:29,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:29,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:29,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:29,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1602834410, now seen corresponding path program 1 times [2022-12-13 11:50:29,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:29,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043764461] [2022-12-13 11:50:29,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:29,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:29,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:29,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043764461] [2022-12-13 11:50:29,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043764461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:29,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:29,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:50:29,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982463166] [2022-12-13 11:50:29,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:29,195 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 11:50:29,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:29,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:50:29,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:50:29,221 INFO L87 Difference]: Start difference. First operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-13 11:50:29,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:50:29,226 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-12-13 11:50:29,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2022-12-13 11:50:29,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 11:50:29,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 20 transitions. [2022-12-13 11:50:29,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-12-13 11:50:29,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-12-13 11:50:29,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2022-12-13 11:50:29,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:29,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-12-13 11:50:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2022-12-13 11:50:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 11:50:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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) [2022-12-13 11:50:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-12-13 11:50:29,261 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-12-13 11:50:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:50:29,266 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-12-13 11:50:29,266 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 11:50:29,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2022-12-13 11:50:29,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 11:50:29,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:29,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:29,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:29,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:29,268 INFO L748 eck$LassoCheckResult]: Stem: 64#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 55#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1.base, main_#t~ret12#1.offset;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 56#L14 assume !(build_nondet_String_~length~0#1 < 1); 57#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 50#build_nondet_String_returnLabel#1 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 51#L14-3 assume build_nondet_String_~length~0#1 < 1;build_nondet_String_~length~0#1 := 1; 58#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 63#build_nondet_String_returnLabel#2 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrpbrk } true;cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset, cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrpbrk_#res#1.base, cstrpbrk_#res#1.offset;havoc cstrpbrk_#t~mem4#1, cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset, cstrpbrk_#t~mem5#1, cstrpbrk_#t~mem6#1, cstrpbrk_#t~short7#1, cstrpbrk_#t~mem9#1, cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset, cstrpbrk_#t~mem3#1, cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset, cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset, cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, cstrpbrk_~c~0#1;cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset := cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset;cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset := cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset;havoc cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;havoc cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;havoc cstrpbrk_~c~0#1;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset; 59#L31-4 [2022-12-13 11:50:29,269 INFO L750 eck$LassoCheckResult]: Loop: 59#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 65#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 60#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 61#L34-1 assume cstrpbrk_#t~short7#1;call cstrpbrk_#t~mem6#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := cstrpbrk_#t~mem6#1 != (if cstrpbrk_~c~0#1 % 256 <= 127 then cstrpbrk_~c~0#1 % 256 else cstrpbrk_~c~0#1 % 256 - 256); 62#L34-3 assume !cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1; 52#L34-6 call cstrpbrk_#t~mem9#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1); 53#L36 assume !(cstrpbrk_#t~mem9#1 != cstrpbrk_~c~0#1);havoc cstrpbrk_#t~mem9#1; 54#L31-3 cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset := cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_#t~post2#1.base, 1 + cstrpbrk_#t~post2#1.offset;havoc cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset; 59#L31-4 [2022-12-13 11:50:29,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:29,270 INFO L85 PathProgramCache]: Analyzing trace with hash 176610378, now seen corresponding path program 2 times [2022-12-13 11:50:29,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:29,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007360619] [2022-12-13 11:50:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:29,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:29,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:29,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:29,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1952985167, now seen corresponding path program 1 times [2022-12-13 11:50:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:29,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910302594] [2022-12-13 11:50:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:29,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:29,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:29,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:29,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash -955886854, now seen corresponding path program 1 times [2022-12-13 11:50:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:29,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89624652] [2022-12-13 11:50:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:29,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:29,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:29,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89624652] [2022-12-13 11:50:29,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89624652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:29,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:29,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:50:29,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023011351] [2022-12-13 11:50:29,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:50:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:50:29,938 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2022-12-13 11:50:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:50:30,083 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-12-13 11:50:30,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2022-12-13 11:50:30,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2022-12-13 11:50:30,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 31 states and 38 transitions. [2022-12-13 11:50:30,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2022-12-13 11:50:30,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-12-13 11:50:30,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2022-12-13 11:50:30,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:30,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-12-13 11:50:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2022-12-13 11:50:30,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-12-13 11:50:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 states have internal predecessors, (36), 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) [2022-12-13 11:50:30,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-12-13 11:50:30,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-12-13 11:50:30,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:50:30,090 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-12-13 11:50:30,090 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 11:50:30,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2022-12-13 11:50:30,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2022-12-13 11:50:30,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:30,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:30,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:30,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:30,092 INFO L748 eck$LassoCheckResult]: Stem: 139#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1.base, main_#t~ret12#1.offset;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 128#L14 assume !(build_nondet_String_~length~0#1 < 1); 130#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 123#build_nondet_String_returnLabel#1 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 124#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 131#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 137#build_nondet_String_returnLabel#2 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrpbrk } true;cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset, cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrpbrk_#res#1.base, cstrpbrk_#res#1.offset;havoc cstrpbrk_#t~mem4#1, cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset, cstrpbrk_#t~mem5#1, cstrpbrk_#t~mem6#1, cstrpbrk_#t~short7#1, cstrpbrk_#t~mem9#1, cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset, cstrpbrk_#t~mem3#1, cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset, cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset, cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, cstrpbrk_~c~0#1;cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset := cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset;cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset := cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset;havoc cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;havoc cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;havoc cstrpbrk_~c~0#1;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset; 133#L31-4 [2022-12-13 11:50:30,092 INFO L750 eck$LassoCheckResult]: Loop: 133#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 140#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 141#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 144#L34-1 assume cstrpbrk_#t~short7#1;call cstrpbrk_#t~mem6#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := cstrpbrk_#t~mem6#1 != (if cstrpbrk_~c~0#1 % 256 <= 127 then cstrpbrk_~c~0#1 % 256 else cstrpbrk_~c~0#1 % 256 - 256); 143#L34-3 assume !cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1; 125#L34-6 call cstrpbrk_#t~mem9#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1); 126#L36 assume !(cstrpbrk_#t~mem9#1 != cstrpbrk_~c~0#1);havoc cstrpbrk_#t~mem9#1; 129#L31-3 cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset := cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_#t~post2#1.base, 1 + cstrpbrk_#t~post2#1.offset;havoc cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset; 133#L31-4 [2022-12-13 11:50:30,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash 176612300, now seen corresponding path program 1 times [2022-12-13 11:50:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724568157] [2022-12-13 11:50:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:30,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:30,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:30,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:30,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1952985167, now seen corresponding path program 2 times [2022-12-13 11:50:30,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:30,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88821356] [2022-12-13 11:50:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:30,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:30,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:30,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:30,136 INFO L85 PathProgramCache]: Analyzing trace with hash -254822276, now seen corresponding path program 1 times [2022-12-13 11:50:30,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:30,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001790463] [2022-12-13 11:50:30,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:30,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:30,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:30,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:30,972 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 11:50:30,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 11:50:30,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 11:50:30,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 11:50:30,972 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 11:50:30,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:30,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 11:50:30,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 11:50:30,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk.c_Iteration3_Lasso [2022-12-13 11:50:30,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 11:50:30,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 11:50:30,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,471 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,475 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,477 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:31,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:32,219 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 11:50:32,223 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 11:50:32,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:32,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:32,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 11:50:32,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 11:50:32,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:32,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:32,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:32,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:32,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 11:50:32,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 11:50:32,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 11:50:32,292 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-12-13 11:50:32,292 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-12-13 11:50:32,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:32,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:32,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:32,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 11:50:32,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 11:50:32,333 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-12-13 11:50:32,334 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 11:50:32,334 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~ret10#1.base)_1, ULTIMATE.start_cstrpbrk_~sc1~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~ret10#1.base)_1 - 1*ULTIMATE.start_cstrpbrk_~sc1~0#1.offset Supporting invariants [] [2022-12-13 11:50:32,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:50:32,357 INFO L156 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2022-12-13 11:50:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:32,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 11:50:32,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:32,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:50:32,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:32,488 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 [2022-12-13 11:50:32,489 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 9 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) [2022-12-13 11:50:32,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 9. 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) Result 48 states and 62 transitions. Complement of second has 4 states. [2022-12-13 11:50:32,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 11:50:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-12-13 11:50:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2022-12-13 11:50:32,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 8 letters. Loop has 8 letters. [2022-12-13 11:50:32,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:32,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 16 letters. Loop has 8 letters. [2022-12-13 11:50:32,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:32,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 8 letters. Loop has 16 letters. [2022-12-13 11:50:32,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:32,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 62 transitions. [2022-12-13 11:50:32,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-12-13 11:50:32,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 42 states and 56 transitions. [2022-12-13 11:50:32,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-12-13 11:50:32,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-12-13 11:50:32,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 56 transitions. [2022-12-13 11:50:32,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 11:50:32,544 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 56 transitions. [2022-12-13 11:50:32,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 56 transitions. [2022-12-13 11:50:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2022-12-13 11:50:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 34 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:50:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2022-12-13 11:50:32,548 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 47 transitions. [2022-12-13 11:50:32,548 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 47 transitions. [2022-12-13 11:50:32,548 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 11:50:32,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 47 transitions. [2022-12-13 11:50:32,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 11:50:32,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:32,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:32,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:32,551 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 11:50:32,551 INFO L748 eck$LassoCheckResult]: Stem: 315#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 301#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1.base, main_#t~ret12#1.offset;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 302#L14 assume !(build_nondet_String_~length~0#1 < 1); 303#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 296#build_nondet_String_returnLabel#1 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 297#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 305#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 328#build_nondet_String_returnLabel#2 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrpbrk } true;cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset, cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrpbrk_#res#1.base, cstrpbrk_#res#1.offset;havoc cstrpbrk_#t~mem4#1, cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset, cstrpbrk_#t~mem5#1, cstrpbrk_#t~mem6#1, cstrpbrk_#t~short7#1, cstrpbrk_#t~mem9#1, cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset, cstrpbrk_#t~mem3#1, cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset, cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset, cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, cstrpbrk_~c~0#1;cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset := cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset;cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset := cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset;havoc cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;havoc cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;havoc cstrpbrk_~c~0#1;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset; 316#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 318#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 307#L34-5 [2022-12-13 11:50:32,551 INFO L750 eck$LassoCheckResult]: Loop: 307#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 308#L34-1 assume cstrpbrk_#t~short7#1;call cstrpbrk_#t~mem6#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := cstrpbrk_#t~mem6#1 != (if cstrpbrk_~c~0#1 % 256 <= 127 then cstrpbrk_~c~0#1 % 256 else cstrpbrk_~c~0#1 % 256 - 256); 311#L34-3 assume !!cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1;cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset := cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_#t~post8#1.base, 1 + cstrpbrk_#t~post8#1.offset;havoc cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset; 307#L34-5 [2022-12-13 11:50:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2074270767, now seen corresponding path program 1 times [2022-12-13 11:50:32,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:32,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134006470] [2022-12-13 11:50:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:32,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:32,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:32,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:32,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:32,583 INFO L85 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 1 times [2022-12-13 11:50:32,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:32,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273585436] [2022-12-13 11:50:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:32,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:32,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:32,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1389069017, now seen corresponding path program 1 times [2022-12-13 11:50:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:32,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956299300] [2022-12-13 11:50:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:32,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:32,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:32,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:32,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 11:50:33,332 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 11:50:33,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 11:50:33,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 11:50:33,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 11:50:33,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 11:50:33,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:33,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 11:50:33,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 11:50:33,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk.c_Iteration4_Lasso [2022-12-13 11:50:33,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 11:50:33,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 11:50:33,337 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,341 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,342 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,344 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,345 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,347 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,350 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,352 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,354 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,355 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,362 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:33,366 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:34,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 11:50:34,412 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 11:50:34,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 11:50:34,415 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 [2022-12-13 11:50:34,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 11:50:34,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 11:50:34,434 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 [2022-12-13 11:50:34,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 11:50:34,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,450 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 11:50:34,452 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 [2022-12-13 11:50:34,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 11:50:34,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 11:50:34,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 11:50:34,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,471 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 11:50:34,473 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 [2022-12-13 11:50:34,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 11:50:34,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,489 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 11:50:34,491 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 [2022-12-13 11:50:34,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 11:50:34,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 11:50:34,508 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 [2022-12-13 11:50:34,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 11:50:34,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 11:50:34,526 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 [2022-12-13 11:50:34,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 11:50:34,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,541 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 11:50:34,543 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 [2022-12-13 11:50:34,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 11:50:34,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 11:50:34,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 11:50:34,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,562 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 11:50:34,564 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 [2022-12-13 11:50:34,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 11:50:34,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 11:50:34,581 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 [2022-12-13 11:50:34,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 11:50:34,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,596 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 11:50:34,598 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 [2022-12-13 11:50:34,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-12-13 11:50:34,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,614 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 11:50:34,616 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 [2022-12-13 11:50:34,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 11:50:34,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,632 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 11:50:34,634 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 [2022-12-13 11:50:34,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 11:50:34,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,649 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 11:50:34,651 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 [2022-12-13 11:50:34,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 11:50:34,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,666 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 11:50:34,668 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 [2022-12-13 11:50:34,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 11:50:34,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,683 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 11:50:34,686 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 [2022-12-13 11:50:34,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 11:50:34,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,701 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 11:50:34,703 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 [2022-12-13 11:50:34,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-12-13 11:50:34,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,719 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 11:50:34,721 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 [2022-12-13 11:50:34,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 11:50:34,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,736 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 11:50:34,738 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 [2022-12-13 11:50:34,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 11:50:34,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,754 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 11:50:34,756 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 [2022-12-13 11:50:34,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 11:50:34,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 11:50:34,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 11:50:34,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:34,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 11:50:34,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,770 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 11:50:34,773 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 [2022-12-13 11:50:34,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:34,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:34,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:34,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:34,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 11:50:34,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 11:50:34,797 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 11:50:34,808 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-12-13 11:50:34,808 INFO L444 ModelExtractionUtils]: 23 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-12-13 11:50:34,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:34,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:34,809 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:34,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 11:50:34,811 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 11:50:34,822 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-12-13 11:50:34,822 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 11:50:34,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrpbrk_~s~0#1.base)_2, ULTIMATE.start_cstrpbrk_~s~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~s~0#1.base)_2 - 1*ULTIMATE.start_cstrpbrk_~s~0#1.offset Supporting invariants [] [2022-12-13 11:50:34,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 11:50:34,846 INFO L156 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2022-12-13 11:50:34,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:34,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:50:34,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:34,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:50:34,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:34,898 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 [2022-12-13 11:50:34,898 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 47 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-13 11:50:34,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 47 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 81 states and 107 transitions. Complement of second has 5 states. [2022-12-13 11:50:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 11:50:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-13 11:50:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2022-12-13 11:50:34,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 10 letters. Loop has 3 letters. [2022-12-13 11:50:34,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:34,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 13 letters. Loop has 3 letters. [2022-12-13 11:50:34,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:34,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 10 letters. Loop has 6 letters. [2022-12-13 11:50:34,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:34,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 107 transitions. [2022-12-13 11:50:34,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 11:50:34,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 61 states and 80 transitions. [2022-12-13 11:50:34,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-12-13 11:50:34,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-12-13 11:50:34,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 80 transitions. [2022-12-13 11:50:34,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 11:50:34,919 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-12-13 11:50:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 80 transitions. [2022-12-13 11:50:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2022-12-13 11:50:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 47 states have internal predecessors, (64), 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) [2022-12-13 11:50:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2022-12-13 11:50:34,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 64 transitions. [2022-12-13 11:50:34,924 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2022-12-13 11:50:34,924 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 11:50:34,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 64 transitions. [2022-12-13 11:50:34,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 11:50:34,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:34,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:34,925 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:34,925 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 11:50:34,925 INFO L748 eck$LassoCheckResult]: Stem: 524#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 507#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1.base, main_#t~ret12#1.offset;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 508#L14 assume !(build_nondet_String_~length~0#1 < 1); 511#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 503#build_nondet_String_returnLabel#1 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 504#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 512#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 523#build_nondet_String_returnLabel#2 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrpbrk } true;cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset, cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrpbrk_#res#1.base, cstrpbrk_#res#1.offset;havoc cstrpbrk_#t~mem4#1, cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset, cstrpbrk_#t~mem5#1, cstrpbrk_#t~mem6#1, cstrpbrk_#t~short7#1, cstrpbrk_#t~mem9#1, cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset, cstrpbrk_#t~mem3#1, cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset, cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset, cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, cstrpbrk_~c~0#1;cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset := cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset;cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset := cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset;havoc cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;havoc cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;havoc cstrpbrk_~c~0#1;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset; 541#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 539#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 535#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 532#L34-1 assume !cstrpbrk_#t~short7#1; 533#L34-3 assume !cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1; 548#L34-6 call cstrpbrk_#t~mem9#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1); 509#L36 assume !(cstrpbrk_#t~mem9#1 != cstrpbrk_~c~0#1);havoc cstrpbrk_#t~mem9#1; 510#L31-3 cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset := cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_#t~post2#1.base, 1 + cstrpbrk_#t~post2#1.offset;havoc cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset; 514#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 527#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 515#L34-5 [2022-12-13 11:50:34,925 INFO L750 eck$LassoCheckResult]: Loop: 515#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 516#L34-1 assume cstrpbrk_#t~short7#1;call cstrpbrk_#t~mem6#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := cstrpbrk_#t~mem6#1 != (if cstrpbrk_~c~0#1 % 256 <= 127 then cstrpbrk_~c~0#1 % 256 else cstrpbrk_~c~0#1 % 256 - 256); 519#L34-3 assume !!cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1;cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset := cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_#t~post8#1.base, 1 + cstrpbrk_#t~post8#1.offset;havoc cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset; 515#L34-5 [2022-12-13 11:50:34,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1703936771, now seen corresponding path program 1 times [2022-12-13 11:50:34,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:34,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267280839] [2022-12-13 11:50:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:34,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:34,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:34,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267280839] [2022-12-13 11:50:34,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267280839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:34,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:34,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:50:34,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772001538] [2022-12-13 11:50:34,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:34,989 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 11:50:34,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:34,990 INFO L85 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 2 times [2022-12-13 11:50:34,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:34,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942038360] [2022-12-13 11:50:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:34,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:34,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:34,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:35,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 11:50:35,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:50:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:50:35,101 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. cyclomatic complexity: 21 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:50:35,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:50:35,147 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2022-12-13 11:50:35,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 76 transitions. [2022-12-13 11:50:35,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 11:50:35,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 54 states and 68 transitions. [2022-12-13 11:50:35,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-12-13 11:50:35,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-12-13 11:50:35,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2022-12-13 11:50:35,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 11:50:35,149 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-12-13 11:50:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2022-12-13 11:50:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2022-12-13 11:50:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 48 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:50:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-12-13 11:50:35,153 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-12-13 11:50:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:50:35,154 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-12-13 11:50:35,154 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 11:50:35,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 63 transitions. [2022-12-13 11:50:35,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 11:50:35,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 11:50:35,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 11:50:35,155 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:35,155 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 11:50:35,156 INFO L748 eck$LassoCheckResult]: Stem: 649#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 633#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1.base, main_#t~ret12#1.offset;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 634#L14 assume !(build_nondet_String_~length~0#1 < 1); 636#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 629#build_nondet_String_returnLabel#1 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 630#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 637#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1 % 18446744073709551616);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 647#build_nondet_String_returnLabel#2 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrpbrk } true;cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset, cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrpbrk_#res#1.base, cstrpbrk_#res#1.offset;havoc cstrpbrk_#t~mem4#1, cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset, cstrpbrk_#t~mem5#1, cstrpbrk_#t~mem6#1, cstrpbrk_#t~short7#1, cstrpbrk_#t~mem9#1, cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset, cstrpbrk_#t~mem3#1, cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset, cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset, cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, cstrpbrk_~c~0#1;cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset := cstrpbrk_#in~s1#1.base, cstrpbrk_#in~s1#1.offset;cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset := cstrpbrk_#in~s2#1.base, cstrpbrk_#in~s2#1.offset;havoc cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;havoc cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;havoc cstrpbrk_~c~0#1;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_~s1#1.base, cstrpbrk_~s1#1.offset; 648#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 667#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 662#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 663#L34-1 assume cstrpbrk_#t~short7#1;call cstrpbrk_#t~mem6#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := cstrpbrk_#t~mem6#1 != (if cstrpbrk_~c~0#1 % 256 <= 127 then cstrpbrk_~c~0#1 % 256 else cstrpbrk_~c~0#1 % 256 - 256); 658#L34-3 assume !cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1; 631#L34-6 call cstrpbrk_#t~mem9#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1); 632#L36 assume !(cstrpbrk_#t~mem9#1 != cstrpbrk_~c~0#1);havoc cstrpbrk_#t~mem9#1; 635#L31-3 cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset := cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset;cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset := cstrpbrk_#t~post2#1.base, 1 + cstrpbrk_#t~post2#1.offset;havoc cstrpbrk_#t~post2#1.base, cstrpbrk_#t~post2#1.offset; 639#L31-4 call cstrpbrk_#t~mem3#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1); 654#L31-1 assume !!(0 != cstrpbrk_#t~mem3#1);havoc cstrpbrk_#t~mem3#1;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_~s2#1.base, cstrpbrk_~s2#1.offset;call cstrpbrk_#t~mem4#1 := read~int(cstrpbrk_~sc1~0#1.base, cstrpbrk_~sc1~0#1.offset, 1);cstrpbrk_~c~0#1 := cstrpbrk_#t~mem4#1;havoc cstrpbrk_#t~mem4#1; 640#L34-5 [2022-12-13 11:50:35,156 INFO L750 eck$LassoCheckResult]: Loop: 640#L34-5 call cstrpbrk_#t~mem5#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := 0 != cstrpbrk_#t~mem5#1; 641#L34-1 assume cstrpbrk_#t~short7#1;call cstrpbrk_#t~mem6#1 := read~int(cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset, 1);cstrpbrk_#t~short7#1 := cstrpbrk_#t~mem6#1 != (if cstrpbrk_~c~0#1 % 256 <= 127 then cstrpbrk_~c~0#1 % 256 else cstrpbrk_~c~0#1 % 256 - 256); 644#L34-3 assume !!cstrpbrk_#t~short7#1;havoc cstrpbrk_#t~mem5#1;havoc cstrpbrk_#t~mem6#1;havoc cstrpbrk_#t~short7#1;cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset := cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset;cstrpbrk_~s~0#1.base, cstrpbrk_~s~0#1.offset := cstrpbrk_#t~post8#1.base, 1 + cstrpbrk_#t~post8#1.offset;havoc cstrpbrk_#t~post8#1.base, cstrpbrk_#t~post8#1.offset; 640#L34-5 [2022-12-13 11:50:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:35,156 INFO L85 PathProgramCache]: Analyzing trace with hash -71070591, now seen corresponding path program 2 times [2022-12-13 11:50:35,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:35,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953840727] [2022-12-13 11:50:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:35,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:35,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:35,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:35,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:35,187 INFO L85 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 3 times [2022-12-13 11:50:35,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:35,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738056220] [2022-12-13 11:50:35,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:35,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:35,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:35,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:35,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash 154934313, now seen corresponding path program 1 times [2022-12-13 11:50:35,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:35,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816982017] [2022-12-13 11:50:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:35,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:35,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:50:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:50:35,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:50:36,422 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 11:50:36,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 11:50:36,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 11:50:36,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 11:50:36,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 11:50:36,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:36,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 11:50:36,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 11:50:36,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk.c_Iteration6_Lasso [2022-12-13 11:50:36,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 11:50:36,423 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 11:50:36,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,096 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,100 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,101 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,104 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,106 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,114 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,116 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:37,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 11:50:38,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 11:50:38,177 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 11:50:38,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:38,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:38,178 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:38,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 11:50:38,180 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 [2022-12-13 11:50:38,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:38,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:38,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:38,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:38,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 11:50:38,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 11:50:38,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 11:50:38,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 11:50:38,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:38,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:38,199 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:38,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 11:50:38,201 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 [2022-12-13 11:50:38,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 11:50:38,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 11:50:38,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 11:50:38,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 11:50:38,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 11:50:38,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 11:50:38,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 11:50:38,259 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-12-13 11:50:38,259 INFO L444 ModelExtractionUtils]: 25 out of 43 variables were initially zero. Simplification set additionally 15 variables to zero. [2022-12-13 11:50:38,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 11:50:38,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:38,260 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:38,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 11:50:38,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 11:50:38,273 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-12-13 11:50:38,273 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 11:50:38,273 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s~0#1.offset, v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0#1.base)_3) = -1*ULTIMATE.start_cstrpbrk_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0#1.base)_3 Supporting invariants [] [2022-12-13 11:50:38,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 11:50:38,343 INFO L156 tatePredicateManager]: 18 out of 20 supporting invariants were superfluous and have been removed [2022-12-13 11:50:38,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:38,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 11:50:38,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:38,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 11:50:38,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:38,465 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-12-13 11:50:38,465 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-13 11:50:38,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 11:50:38,518 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 79 states and 99 transitions. Complement of second has 7 states. [2022-12-13 11:50:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 11:50:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-13 11:50:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-12-13 11:50:38,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2022-12-13 11:50:38,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:38,519 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 11:50:38,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:38,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 11:50:38,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:38,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 11:50:38,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:38,621 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2022-12-13 11:50:38,622 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-13 11:50:38,663 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 79 states and 99 transitions. Complement of second has 7 states. [2022-12-13 11:50:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 11:50:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-13 11:50:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-12-13 11:50:38,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2022-12-13 11:50:38,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:38,664 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 11:50:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:38,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 11:50:38,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:38,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 11:50:38,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:50:38,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:50:38,762 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-12-13 11:50:38,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-13 11:50:38,810 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 78 states and 102 transitions. Complement of second has 6 states. [2022-12-13 11:50:38,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 11:50:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-13 11:50:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-12-13 11:50:38,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 18 letters. Loop has 3 letters. [2022-12-13 11:50:38,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:38,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 21 letters. Loop has 3 letters. [2022-12-13 11:50:38,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:38,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 18 letters. Loop has 6 letters. [2022-12-13 11:50:38,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 11:50:38,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 102 transitions. [2022-12-13 11:50:38,812 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 11:50:38,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 0 states and 0 transitions. [2022-12-13 11:50:38,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 11:50:38,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 11:50:38,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 11:50:38,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:38,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:50:38,813 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:50:38,813 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:50:38,813 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 11:50:38,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 11:50:38,813 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 11:50:38,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 11:50:38,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 11:50:38 BoogieIcfgContainer [2022-12-13 11:50:38,818 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 11:50:38,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:50:38,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:50:38,818 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:50:38,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:50:28" (3/4) ... [2022-12-13 11:50:38,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:50:38,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:50:38,821 INFO L158 Benchmark]: Toolchain (without parser) took 10405.48ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 93.0MB in the beginning and 80.5MB in the end (delta: 12.5MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2022-12-13 11:50:38,821 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:50:38,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.76ms. Allocated memory is still 123.7MB. Free memory was 92.5MB in the beginning and 82.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:50:38,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.66ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:50:38,821 INFO L158 Benchmark]: Boogie Preprocessor took 24.21ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:50:38,822 INFO L158 Benchmark]: RCFGBuilder took 261.51ms. Allocated memory is still 123.7MB. Free memory was 79.8MB in the beginning and 67.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:50:38,822 INFO L158 Benchmark]: BuchiAutomizer took 9915.83ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 67.7MB in the beginning and 81.6MB in the end (delta: -13.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-12-13 11:50:38,822 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 159.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:50:38,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.76ms. Allocated memory is still 123.7MB. Free memory was 92.5MB in the beginning and 82.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.66ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.21ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.51ms. Allocated memory is still 123.7MB. Free memory was 79.8MB in the beginning and 67.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 9915.83ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 67.7MB in the beginning and 81.6MB in the end (delta: -13.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 159.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[build_nondet_String()] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 3 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[nondetString] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 297 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 143 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital298 mio100 ax100 hnf100 lsp103 ukn72 mio100 lsp29 div165 bol100 ite100 ukn100 eq159 hnf93 smp71 dnf589 smp50 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 110ms VariablesStem: 10 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 11:50:38,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f3368f-b58c-4317-ba7c-e7a24c8f8ce0/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE