./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg --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 dab3cfcd7f834fcfbdfecec143b1f55491432e66d7189ec50c725339851d6e17 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:33:04,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:33:04,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:33:04,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:33:04,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:33:04,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:33:04,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:33:04,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:33:04,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:33:04,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:33:04,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:33:04,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:33:04,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:33:04,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:33:04,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:33:04,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:33:04,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:33:04,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:33:04,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:33:04,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:33:04,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:33:04,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:33:04,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:33:04,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:33:04,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:33:04,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:33:04,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:33:04,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:33:04,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:33:04,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:33:04,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:33:04,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:33:04,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:33:04,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:33:04,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:33:04,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:33:04,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:33:04,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:33:04,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:33:04,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:33:04,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:33:04,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:33:04,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:33:04,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:33:04,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:33:04,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:33:04,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:33:04,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:33:04,939 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:33:04,940 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:33:04,940 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:33:04,940 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:33:04,941 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:33:04,941 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:33:04,941 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:33:04,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:33:04,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:33:04,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:33:04,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:33:04,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:33:04,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:33:04,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:33:04,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:33:04,943 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:33:04,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:33:04,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:33:04,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:33:04,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:33:04,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:33:04,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:33:04,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:33:04,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:33:04,948 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_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab3cfcd7f834fcfbdfecec143b1f55491432e66d7189ec50c725339851d6e17 [2021-10-28 09:33:05,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:33:05,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:33:05,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:33:05,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:33:05,253 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:33:05,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2021-10-28 09:33:05,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/data/38726a5ce/52ec7ee8ecaf4605917ca66f1d2a23bd/FLAGbfef602a6 [2021-10-28 09:33:05,805 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:33:05,805 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2021-10-28 09:33:05,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/data/38726a5ce/52ec7ee8ecaf4605917ca66f1d2a23bd/FLAGbfef602a6 [2021-10-28 09:33:06,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/data/38726a5ce/52ec7ee8ecaf4605917ca66f1d2a23bd [2021-10-28 09:33:06,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:33:06,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:33:06,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:33:06,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:33:06,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:33:06,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7193c8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06, skipping insertion in model container [2021-10-28 09:33:06,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:33:06,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:33:06,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:33:06,512 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:33:06,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:33:06,602 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:33:06,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06 WrapperNode [2021-10-28 09:33:06,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:33:06,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:33:06,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:33:06,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:33:06,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:33:06,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:33:06,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:33:06,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:33:06,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:33:06,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:33:06,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:33:06,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:33:06,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (1/1) ... [2021-10-28 09:33:06,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:06,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:06,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:33:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:33:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:33:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:33:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:33:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:33:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:33:07,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:33:07,022 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 09:33:07,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:33:07 BoogieIcfgContainer [2021-10-28 09:33:07,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:33:07,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:33:07,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:33:07,028 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:33:07,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:33:07,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:33:06" (1/3) ... [2021-10-28 09:33:07,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6686eae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:33:07, skipping insertion in model container [2021-10-28 09:33:07,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:33:07,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:06" (2/3) ... [2021-10-28 09:33:07,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6686eae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:33:07, skipping insertion in model container [2021-10-28 09:33:07,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:33:07,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:33:07" (3/3) ... [2021-10-28 09:33:07,033 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca-1.i [2021-10-28 09:33:07,130 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:33:07,130 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:33:07,130 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:33:07,131 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:33:07,131 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:33:07,131 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:33:07,132 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:33:07,132 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:33:07,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:07,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:33:07,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:07,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:07,187 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:33:07,188 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:33:07,188 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:33:07,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:07,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:33:07,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:07,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:07,194 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:33:07,194 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:33:07,202 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 12#L562true assume !(main_~length1~0 < 1); 15#L562-2true assume !(main_~length2~0 < 1); 13#L565-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 14#L553-4true [2021-10-28 09:33:07,203 INFO L793 eck$LassoCheckResult]: Loop: 14#L553-4true cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 10#L552-1true assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 7#L553-3true assume !true; 14#L553-4true [2021-10-28 09:33:07,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:07,217 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-28 09:33:07,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:07,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544014750] [2021-10-28 09:33:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:07,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,358 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,406 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash 49828, now seen corresponding path program 1 times [2021-10-28 09:33:07,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:07,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106549737] [2021-10-28 09:33:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:07,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:07,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:33:07,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106549737] [2021-10-28 09:33:07,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106549737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:33:07,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:33:07,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 09:33:07,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045874380] [2021-10-28 09:33:07,516 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:33:07,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:33:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:33:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:33:07,543 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:33:07,550 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-28 09:33:07,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:33:07,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-10-28 09:33:07,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:33:07,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-10-28 09:33:07,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 09:33:07,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:33:07,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-28 09:33:07,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:33:07,561 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:33:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-28 09:33:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 09:33:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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) [2021-10-28 09:33:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 09:33:07,587 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:33:07,587 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 09:33:07,587 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:33:07,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 09:33:07,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:33:07,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:07,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:07,590 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:33:07,590 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:33:07,591 INFO L791 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 39#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 42#L562 assume !(main_~length1~0 < 1); 43#L562-2 assume !(main_~length2~0 < 1); 46#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 44#L553-4 [2021-10-28 09:33:07,591 INFO L793 eck$LassoCheckResult]: Loop: 44#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 47#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 40#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 41#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 44#L553-4 [2021-10-28 09:33:07,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:07,593 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-10-28 09:33:07,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:07,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154599316] [2021-10-28 09:33:07,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:07,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,627 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:07,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1544297, now seen corresponding path program 1 times [2021-10-28 09:33:07,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:07,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6374336] [2021-10-28 09:33:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:07,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,659 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:07,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1298350894, now seen corresponding path program 1 times [2021-10-28 09:33:07,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:07,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164568792] [2021-10-28 09:33:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:07,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,699 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:07,733 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:08,643 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:33:08,644 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:33:08,644 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:33:08,644 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:33:08,644 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:33:08,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:08,645 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:33:08,645 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:33:08,645 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration2_Lasso [2021-10-28 09:33:08,645 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:33:08,646 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:33:08,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:08,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:09,551 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:33:09,561 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:33:09,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,573 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 [2021-10-28 09:33:09,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:33:09,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 09:33:09,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:33:09,623 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 [2021-10-28 09:33:09,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:09,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:33:09,663 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 [2021-10-28 09:33:09,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:09,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,741 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 [2021-10-28 09:33:09,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:33:09,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:09,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,800 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:33:09,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:33:09,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:09,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,835 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:33:09,836 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 [2021-10-28 09:33:09,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:09,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:09,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:09,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,901 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,907 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 [2021-10-28 09:33:09,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:33:09,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:09,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:09,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:09,977 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:09,985 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 [2021-10-28 09:33:09,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:09,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:09,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:09,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:09,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:09,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:09,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:09,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:33:10,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:10,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:10,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:10,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:10,062 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:10,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:33:10,069 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 [2021-10-28 09:33:10,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:10,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:10,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:10,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:10,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:10,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:10,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:10,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:10,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:10,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:10,150 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:10,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:33:10,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:33:10,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:10,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:10,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:10,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:10,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:10,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:10,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:10,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:10,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:10,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:10,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:10,190 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:10,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:33:10,191 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 [2021-10-28 09:33:10,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:10,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:10,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:10,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:10,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:10,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:10,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:10,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:10,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:10,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:10,275 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:10,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:33:10,287 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 [2021-10-28 09:33:10,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:10,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:10,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:10,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:10,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:10,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:10,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:10,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:10,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:10,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:10,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:10,327 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:10,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:33:10,328 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 [2021-10-28 09:33:10,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:10,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:10,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:10,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:10,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:10,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:10,372 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:33:10,425 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 09:33:10,425 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-28 09:33:10,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:10,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:10,456 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:10,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:33:10,529 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:33:10,561 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:33:10,561 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:33:10,562 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_cstrpbrk_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2021-10-28 09:33:10,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:10,635 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-10-28 09:33:10,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:10,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:33:10,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:10,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:33:10,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:10,813 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:33:10,821 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:10,881 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 4 states. [2021-10-28 09:33:10,882 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 [2021-10-28 09:33:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-28 09:33:10,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 09:33:10,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:10,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2021-10-28 09:33:10,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:10,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-28 09:33:10,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:10,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-28 09:33:10,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:33:10,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2021-10-28 09:33:10,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 09:33:10,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:33:10,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-10-28 09:33:10,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:33:10,893 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 09:33:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-10-28 09:33:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-28 09:33:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 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) [2021-10-28 09:33:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-10-28 09:33:10,900 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-28 09:33:10,900 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-28 09:33:10,900 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:33:10,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-10-28 09:33:10,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:33:10,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:10,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:10,906 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:33:10,906 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:33:10,907 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 153#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 158#L562 assume !(main_~length1~0 < 1); 159#L562-2 assume !(main_~length2~0 < 1); 160#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 161#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 165#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 154#L553-3 [2021-10-28 09:33:10,907 INFO L793 eck$LassoCheckResult]: Loop: 154#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 155#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 162#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 154#L553-3 [2021-10-28 09:33:10,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:10,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2021-10-28 09:33:10,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:10,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647675490] [2021-10-28 09:33:10,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:10,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:10,944 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:10,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 1 times [2021-10-28 09:33:10,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:10,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133466481] [2021-10-28 09:33:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:10,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:10,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:10,982 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:10,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:10,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1594172151, now seen corresponding path program 1 times [2021-10-28 09:33:10,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:10,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480222154] [2021-10-28 09:33:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:10,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:11,013 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:11,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:11,780 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:33:11,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:33:11,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:33:11,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:33:11,781 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:33:11,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:11,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:33:11,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:33:11,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration3_Lasso [2021-10-28 09:33:11,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:33:11,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:33:11,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:11,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:11,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:11,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:11,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:11,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:11,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:12,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:12,567 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:33:12,569 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:33:12,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,573 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:33:12,585 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 [2021-10-28 09:33:12,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:12,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:12,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:12,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:12,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,644 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:33:12,648 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 [2021-10-28 09:33:12,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:12,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:12,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:12,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:12,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,702 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:33:12,703 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 [2021-10-28 09:33:12,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:12,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:12,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:12,712 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:12,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,735 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:33:12,737 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 [2021-10-28 09:33:12,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:12,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:12,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 09:33:12,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,791 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:33:12,794 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 [2021-10-28 09:33:12,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:12,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:12,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:12,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:12,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,823 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:33:12,827 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 [2021-10-28 09:33:12,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:12,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:12,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:12,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,892 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:33:12,893 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 [2021-10-28 09:33:12,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:12,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:12,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:12,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:12,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:12,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 09:33:12,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:12,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:12,957 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:12,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:33:12,959 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 [2021-10-28 09:33:12,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:12,966 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 09:33:12,966 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-10-28 09:33:12,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:12,997 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2021-10-28 09:33:12,997 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-10-28 09:33:13,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:13,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:13,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:13,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:13,101 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:13,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:33:13,102 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 [2021-10-28 09:33:13,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:13,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:13,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:13,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:13,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:13,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:13,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:13,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:13,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:13,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:13,186 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:13,193 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 [2021-10-28 09:33:13,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:13,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:13,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:13,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:13,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:13,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:13,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:33:13,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:13,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:13,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:13,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:13,257 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:13,261 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 [2021-10-28 09:33:13,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:13,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:13,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:13,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:13,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:13,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:13,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:33:13,304 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:33:13,330 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-28 09:33:13,330 INFO L444 ModelExtractionUtils]: 20 out of 28 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 09:33:13,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:13,333 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:13,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:33:13,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:33:13,362 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:33:13,362 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:33:13,362 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2021-10-28 09:33:13,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:13,433 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2021-10-28 09:33:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:13,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:33:13,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:13,539 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:33:13,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:13,591 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:33:13,592 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-28 09:33:13,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 31 states and 38 transitions. Complement of second has 6 states. [2021-10-28 09:33:13,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:33:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-28 09:33:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 09:33:13,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 09:33:13,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:13,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 09:33:13,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:13,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-28 09:33:13,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:13,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-10-28 09:33:13,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:33:13,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 27 transitions. [2021-10-28 09:33:13,641 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 09:33:13,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 09:33:13,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-28 09:33:13,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:33:13,641 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-28 09:33:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-28 09:33:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-10-28 09:33:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-10-28 09:33:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-28 09:33:13,645 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 09:33:13,645 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 09:33:13,645 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:33:13,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-10-28 09:33:13,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:33:13,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:13,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:13,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:33:13,649 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:33:13,649 INFO L791 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 309#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 314#L562 assume !(main_~length1~0 < 1); 315#L562-2 assume !(main_~length2~0 < 1); 316#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 317#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 321#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 312#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 313#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 319#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 322#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 310#L553-3 [2021-10-28 09:33:13,649 INFO L793 eck$LassoCheckResult]: Loop: 310#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 311#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 318#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 310#L553-3 [2021-10-28 09:33:13,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:13,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2120273357, now seen corresponding path program 2 times [2021-10-28 09:33:13,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:13,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971286503] [2021-10-28 09:33:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:13,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:13,699 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:13,732 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:13,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:13,739 INFO L85 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 2 times [2021-10-28 09:33:13,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:13,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935677488] [2021-10-28 09:33:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:13,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:13,750 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:13,757 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:13,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:13,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1020472847, now seen corresponding path program 1 times [2021-10-28 09:33:13,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:13,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738933434] [2021-10-28 09:33:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:13,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:13,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:33:13,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738933434] [2021-10-28 09:33:13,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738933434] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:33:13,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8727538] [2021-10-28 09:33:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:13,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:33:13,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:13,860 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:33:13,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 09:33:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:13,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 09:33:13,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:13,986 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-10-28 09:33:13,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2021-10-28 09:33:26,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-28 09:33:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:26,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8727538] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:33:26,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:33:26,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2021-10-28 09:33:26,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583019478] [2021-10-28 09:33:26,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:33:26,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:33:26,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2021-10-28 09:33:26,260 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2021-10-28 09:33:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:33:26,426 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-10-28 09:33:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:33:26,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-28 09:33:26,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:33:26,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 28 transitions. [2021-10-28 09:33:26,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 09:33:26,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 09:33:26,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2021-10-28 09:33:26,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:33:26,429 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-28 09:33:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2021-10-28 09:33:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2021-10-28 09:33:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-10-28 09:33:26,431 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 09:33:26,431 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 09:33:26,431 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:33:26,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-10-28 09:33:26,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:33:26,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:26,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:26,432 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:33:26,432 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:33:26,433 INFO L791 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 418#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 423#L562 assume !(main_~length1~0 < 1); 424#L562-2 assume !(main_~length2~0 < 1); 427#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 428#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 429#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 421#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 422#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 426#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 432#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 433#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 430#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 431#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 419#L553-3 [2021-10-28 09:33:26,433 INFO L793 eck$LassoCheckResult]: Loop: 419#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 420#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 425#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 419#L553-3 [2021-10-28 09:33:26,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:26,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1095399647, now seen corresponding path program 2 times [2021-10-28 09:33:26,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:26,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014373122] [2021-10-28 09:33:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:26,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:26,449 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:26,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 3 times [2021-10-28 09:33:26,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:26,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578564619] [2021-10-28 09:33:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:26,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:26,473 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:26,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:26,477 INFO L85 PathProgramCache]: Analyzing trace with hash -110602269, now seen corresponding path program 3 times [2021-10-28 09:33:26,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:26,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78304093] [2021-10-28 09:33:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:26,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:26,516 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:26,538 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:26,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:27,796 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:33:27,796 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:33:27,796 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:33:27,796 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:33:27,796 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:33:27,796 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:27,796 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:33:27,796 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:33:27,796 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration5_Lasso [2021-10-28 09:33:27,797 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:33:27,797 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:33:27,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:27,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:28,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:33:29,284 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:33:29,284 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:33:29,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,293 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:33:29,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:33:29,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:29,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:29,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:29,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 09:33:29,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,336 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:33:29,337 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 [2021-10-28 09:33:29,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:29,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:29,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:29,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:29,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,377 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,379 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 [2021-10-28 09:33:29,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:33:29,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:29,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:29,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:29,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:29,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,412 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:33:29,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:33:29,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:29,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:29,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:29,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 09:33:29,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,443 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:33:29,445 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 [2021-10-28 09:33:29,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:29,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:29,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 09:33:29,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,517 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,533 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 [2021-10-28 09:33:29,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:29,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:29,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:29,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:33:29,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 09:33:29,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,585 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:33:29,587 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 [2021-10-28 09:33:29,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:33:29,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:33:29,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:33:29,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 09:33:29,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,616 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:33:29,618 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 [2021-10-28 09:33:29,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:29,626 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:29,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:33:29,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:29,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,658 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:33:29,666 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 [2021-10-28 09:33:29,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:33:29,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:33:29,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:33:29,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:33:29,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:33:29,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:33:29,712 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:33:29,737 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-28 09:33:29,737 INFO L444 ModelExtractionUtils]: 35 out of 49 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-28 09:33:29,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:29,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:29,741 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:29,745 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:33:29,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:33:29,769 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:33:29,770 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:33:29,770 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_3, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_3 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2021-10-28 09:33:29,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:29,907 INFO L297 tatePredicateManager]: 30 out of 30 supporting invariants were superfluous and have been removed [2021-10-28 09:33:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:29,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:33:29,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:30,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:33:30,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:30,034 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:33:30,035 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:30,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 5 states. [2021-10-28 09:33:30,049 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 [2021-10-28 09:33:30,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-10-28 09:33:30,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 09:33:30,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:30,050 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:33:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:30,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:33:30,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:30,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:33:30,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:30,181 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:33:30,181 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:30,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 5 states. [2021-10-28 09:33:30,199 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 [2021-10-28 09:33:30,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:30,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-28 09:33:30,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 09:33:30,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:30,200 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:33:30,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:30,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:33:30,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:30,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:33:30,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:33:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:33:30,314 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:33:30,315 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:30,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 29 transitions. Complement of second has 4 states. [2021-10-28 09:33:30,330 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 [2021-10-28 09:33:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:30,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-10-28 09:33:30,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 09:33:30,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:30,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-28 09:33:30,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:30,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-28 09:33:30,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:33:30,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2021-10-28 09:33:30,339 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:33:30,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-28 09:33:30,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:33:30,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:33:30,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:33:30,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:33:30,340 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:33:30,340 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:33:30,340 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:33:30,340 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:33:30,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:33:30,340 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:33:30,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:33:30,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:33:30 BoogieIcfgContainer [2021-10-28 09:33:30,346 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:33:30,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:33:30,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:33:30,347 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:33:30,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:33:07" (3/4) ... [2021-10-28 09:33:30,351 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:33:30,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:33:30,358 INFO L168 Benchmark]: Toolchain (without parser) took 24196.88 ms. Allocated memory was 115.3 MB in the beginning and 174.1 MB in the end (delta: 58.7 MB). Free memory was 79.0 MB in the beginning and 86.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:33:30,359 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 115.3 MB. Free memory was 89.8 MB in the beginning and 89.7 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:33:30,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.64 ms. Allocated memory is still 115.3 MB. Free memory was 78.8 MB in the beginning and 85.5 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:33:30,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.44 ms. Allocated memory is still 115.3 MB. Free memory was 85.5 MB in the beginning and 84.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:33:30,361 INFO L168 Benchmark]: Boogie Preprocessor took 35.03 ms. Allocated memory is still 115.3 MB. Free memory was 84.0 MB in the beginning and 82.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:33:30,363 INFO L168 Benchmark]: RCFGBuilder took 326.50 ms. Allocated memory is still 115.3 MB. Free memory was 82.4 MB in the beginning and 72.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:33:30,367 INFO L168 Benchmark]: BuchiAutomizer took 23321.75 ms. Allocated memory was 115.3 MB in the beginning and 174.1 MB in the end (delta: 58.7 MB). Free memory was 72.4 MB in the beginning and 87.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:33:30,368 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 174.1 MB. Free memory is still 86.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:33:30,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 115.3 MB. Free memory was 89.8 MB in the beginning and 89.7 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.64 ms. Allocated memory is still 115.3 MB. Free memory was 78.8 MB in the beginning and 85.5 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.44 ms. Allocated memory is still 115.3 MB. Free memory was 85.5 MB in the beginning and 84.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.03 ms. Allocated memory is still 115.3 MB. Free memory was 84.0 MB in the beginning and 82.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 326.50 ms. Allocated memory is still 115.3 MB. Free memory was 82.4 MB in the beginning and 72.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 23321.75 ms. Allocated memory was 115.3 MB in the beginning and 174.1 MB in the end (delta: 58.7 MB). Free memory was 72.4 MB in the beginning and 87.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.05 ms. Allocated memory is still 174.1 MB. Free memory is still 86.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[scanp] + -1 * scanp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 23.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 21.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 84 SDslu, 55 SDs, 0 SdLazy, 102 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital220 mio100 ax108 hnf99 lsp89 ukn78 mio100 lsp32 div100 bol100 ite100 ukn100 eq196 hnf87 smp100 dnf235 smp90 tf100 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 112ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:33:30,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:30,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:33:30,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5ce26d-4096-4722-979d-f0a7d64bb70c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...