./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/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_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/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 32bit --witnessprinter.graph.data.programhash 33fdb29d081e8788960943f1182fbfb10ca7dcdfe7c31b22aaab16bda45fd1b8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:02:25,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:25,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:25,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:25,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:25,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:25,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:25,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:25,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:25,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:25,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:25,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:25,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:25,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:25,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:02:25,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:02:25,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:02:25,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:02:25,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:02:25,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:02:25,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:02:25,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:02:25,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:02:25,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:02:25,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:02:25,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:02:25,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:02:25,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:02:25,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:02:25,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:02:25,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:02:25,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:02:25,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:02:25,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:02:25,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:02:25,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:02:25,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:02:25,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:02:25,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:02:25,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:02:25,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:02:25,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:02:25,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:02:25,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:02:25,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:02:25,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:02:25,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:02:25,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:02:25,623 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:02:25,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:02:25,624 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:02:25,624 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:02:25,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:02:25,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:02:25,625 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:02:25,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:02:25,625 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:02:25,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:02:25,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:02:25,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:02:25,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:02:25,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:02:25,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:02:25,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:02:25,627 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:02:25,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:02:25,628 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:02:25,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:02:25,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:02:25,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:02:25,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:02:25,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:02:25,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:02:25,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:02:25,630 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:02:25,631 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_2e404b06-26c0-4577-bff3-2d42efbc9095/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fdb29d081e8788960943f1182fbfb10ca7dcdfe7c31b22aaab16bda45fd1b8 [2021-10-28 09:02:25,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:02:25,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:02:25,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:02:25,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:02:25,968 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:02:25,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-regression/ex3_forlist.i [2021-10-28 09:02:26,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/data/ace54d543/fa8c5c7106a04b5fae21804b28fa37cb/FLAG76637f9be [2021-10-28 09:02:26,644 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:02:26,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/sv-benchmarks/c/ldv-regression/ex3_forlist.i [2021-10-28 09:02:26,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/data/ace54d543/fa8c5c7106a04b5fae21804b28fa37cb/FLAG76637f9be [2021-10-28 09:02:26,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/data/ace54d543/fa8c5c7106a04b5fae21804b28fa37cb [2021-10-28 09:02:27,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:02:27,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:02:27,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:27,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:02:27,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:02:27,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:26" (1/1) ... [2021-10-28 09:02:27,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d6ffa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27, skipping insertion in model container [2021-10-28 09:02:27,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:26" (1/1) ... [2021-10-28 09:02:27,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:02:27,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:02:27,228 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2021-10-28 09:02:27,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:27,268 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:02:27,281 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2021-10-28 09:02:27,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:27,311 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:02:27,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27 WrapperNode [2021-10-28 09:02:27,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:27,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:27,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:02:27,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:02:27,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:27,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:02:27,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:02:27,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:02:27,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:02:27,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:02:27,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:02:27,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:02:27,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (1/1) ... [2021-10-28 09:02:27,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:27,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:27,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:27,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:02:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:02:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:02:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:02:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:02:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:02:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:02:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:02:27,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:02:27,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:02:27,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:02:27,953 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-28 09:02:27,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:27 BoogieIcfgContainer [2021-10-28 09:02:27,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:02:27,956 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:02:27,957 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:02:27,968 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:02:27,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:02:27,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:02:26" (1/3) ... [2021-10-28 09:02:27,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@513e258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:02:27, skipping insertion in model container [2021-10-28 09:02:27,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:02:27,972 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:27" (2/3) ... [2021-10-28 09:02:27,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@513e258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:02:27, skipping insertion in model container [2021-10-28 09:02:27,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:02:27,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:27" (3/3) ... [2021-10-28 09:02:27,975 INFO L389 chiAutomizerObserver]: Analyzing ICFG ex3_forlist.i [2021-10-28 09:02:28,061 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:02:28,061 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:02:28,061 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:02:28,061 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:02:28,061 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:02:28,061 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:02:28,062 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:02:28,062 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:02:28,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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 09:02:28,104 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-28 09:02:28,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:28,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:28,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:02:28,112 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:02:28,112 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:02:28,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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 09:02:28,120 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-28 09:02:28,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:28,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:28,121 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:02:28,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:02:28,130 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 7#L-1true havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 34#L19-3true [2021-10-28 09:02:28,130 INFO L793 eck$LassoCheckResult]: Loop: 34#L19-3true assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 3#L19-2true init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 34#L19-3true [2021-10-28 09:02:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:02:28,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:28,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283475321] [2021-10-28 09:02:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:28,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:28,292 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:28,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:28,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:28,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-28 09:02:28,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:28,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362191834] [2021-10-28 09:02:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:28,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:28,370 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:28,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-28 09:02:28,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:28,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803337455] [2021-10-28 09:02:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:28,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:28,481 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:28,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:29,955 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:02:29,956 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:02:29,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:02:29,956 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:02:29,956 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:02:29,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:29,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:02:29,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:02:29,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: ex3_forlist.i_Iteration1_Lasso [2021-10-28 09:02:29,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:02:29,957 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:02:29,985 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 09:02:29,992 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 09:02:30,004 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 09:02:30,007 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 09:02:30,025 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 09:02:30,028 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 09:02:30,031 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 09:02:30,033 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 09:02:30,036 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 09:02:30,039 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 09:02:30,043 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 09:02:30,045 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 09:02:30,048 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 09:02:30,051 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 09:02:30,054 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 09:02:30,763 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 09:02:31,214 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:02:31,220 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:02:31,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:02:31,253 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 09:02:31,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 09:02:31,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:02:31,328 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 09:02:31,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:31,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:31,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,419 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 09:02:31,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:02:31,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:02:31,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:02:31,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 09:02:31,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,577 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 09:02:31,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:31,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:31,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:02:31,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:02:31,673 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 09:02:31,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,749 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 09:02:31,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:02:31,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:02:31,803 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 09:02:31,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,843 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 09:02:31,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:02:31,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:31,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:31,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,901 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:02:31,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:02:31,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:31,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:31,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:31,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:31,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:31,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:31,954 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:31,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:02:31,962 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 09:02:31,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:31,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:31,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:31,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:31,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:31,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:31,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:31,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,004 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:02:32,006 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 09:02:32,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:32,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:32,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:32,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,055 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:02:32,056 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 09:02:32,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,093 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:02:32,096 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 09:02:32,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:32,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:32,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:32,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,130 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:02:32,133 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 09:02:32,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,214 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,224 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 09:02:32,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:02:32,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,309 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,315 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 09:02:32,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:02:32,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,375 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:02:32,377 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 09:02:32,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 09:02:32,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,432 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:02:32,438 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 09:02:32,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,482 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:02:32,484 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 09:02:32,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,536 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:02:32,539 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 09:02:32,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,629 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:02:32,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:02:32,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 09:02:32,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,696 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:02:32,697 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 09:02:32,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:32,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:32,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:32,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,763 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:02:32,765 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 09:02:32,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,818 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:02:32,819 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 09:02:32,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:32,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:32,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:32,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 09:02:32,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,871 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:02:32,873 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 09:02:32,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:32,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:32,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:32,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:32,960 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:32,969 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 09:02:32,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:32,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:32,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:32,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:32,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:32,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:32,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:02:33,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:33,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 09:02:33,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:33,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:33,035 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:33,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:02:33,038 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 09:02:33,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:33,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:02:33,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:33,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:33,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:33,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:02:33,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:02:33,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:33,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 09:02:33,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:33,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:33,075 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:33,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:02:33,077 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 09:02:33,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:33,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:33,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:33,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:33,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:33,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:33,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:33,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:02:33,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:33,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:33,126 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:33,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:02:33,127 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 09:02:33,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:33,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:33,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:33,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:33,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:33,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:33,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:33,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:33,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:33,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:33,234 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:33,237 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 09:02:33,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:33,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:33,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:33,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:33,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:33,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:33,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:02:33,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:02:33,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:33,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:33,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:33,314 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:33,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:02:33,317 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 09:02:33,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:02:33,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:02:33,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:02:33,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:02:33,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:02:33,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:02:33,362 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:02:33,406 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 09:02:33,406 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 09:02:33,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:33,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:33,409 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:33,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:02:33,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:02:33,450 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:02:33,450 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:02:33,451 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ~#pp~0.base)_1, ULTIMATE.start_init_~i~0) = 3*v_rep(select #length ~#pp~0.base)_1 - 8*ULTIMATE.start_init_~i~0 Supporting invariants [] [2021-10-28 09:02:33,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:33,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:02:33,684 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2021-10-28 09:02:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:33,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:02:33,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:33,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:02:33,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:33,833 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 09:02:33,852 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 09:02:33,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 09:02:33,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 93 states and 136 transitions. Complement of second has 7 states. [2021-10-28 09:02:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:02:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 09:02:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2021-10-28 09:02:33,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:02:33,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:02:33,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:02:33,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:02:33,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 09:02:33,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:02:33,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 136 transitions. [2021-10-28 09:02:33,993 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 09:02:33,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 28 states and 37 transitions. [2021-10-28 09:02:33,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-28 09:02:34,000 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 09:02:34,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2021-10-28 09:02:34,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:34,002 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-28 09:02:34,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2021-10-28 09:02:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-28 09:02:34,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 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 09:02:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-10-28 09:02:34,039 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-28 09:02:34,039 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-28 09:02:34,039 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:02:34,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2021-10-28 09:02:34,041 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 09:02:34,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:34,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:34,042 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:34,042 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:02:34,043 INFO L791 eck$LassoCheckResult]: Stem: 277#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 264#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 265#L19-3 assume !(init_~i~0 < 2); 281#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 273#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 267#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 262#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 263#L27-3 [2021-10-28 09:02:34,043 INFO L793 eck$LassoCheckResult]: Loop: 263#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 284#L28 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 266#L27-2 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 263#L27-3 [2021-10-28 09:02:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1807951404, now seen corresponding path program 1 times [2021-10-28 09:02:34,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372219972] [2021-10-28 09:02:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:34,105 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 09:02:34,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:34,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372219972] [2021-10-28 09:02:34,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372219972] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:34,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:34,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:02:34,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123603710] [2021-10-28 09:02:34,110 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:02:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,111 INFO L85 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 1 times [2021-10-28 09:02:34,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716848765] [2021-10-28 09:02:34,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:34,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:34,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:02:34,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:02:34,188 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:34,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:34,206 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-10-28 09:02:34,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:02:34,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2021-10-28 09:02:34,209 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 09:02:34,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 37 transitions. [2021-10-28 09:02:34,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 09:02:34,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 09:02:34,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2021-10-28 09:02:34,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:34,211 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-10-28 09:02:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2021-10-28 09:02:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-28 09:02:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-28 09:02:34,215 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 09:02:34,215 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 09:02:34,215 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:02:34,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-28 09:02:34,216 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 09:02:34,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:34,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:34,217 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:34,217 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:02:34,217 INFO L791 eck$LassoCheckResult]: Stem: 340#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 327#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 328#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 320#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 321#L19-3 assume !(init_~i~0 < 2); 344#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 333#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 330#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 322#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 323#L27-3 [2021-10-28 09:02:34,218 INFO L793 eck$LassoCheckResult]: Loop: 323#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 347#L28 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 329#L27-2 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 323#L27-3 [2021-10-28 09:02:34,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,218 INFO L85 PathProgramCache]: Analyzing trace with hash -369325334, now seen corresponding path program 1 times [2021-10-28 09:02:34,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784466637] [2021-10-28 09:02:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:02:34,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:34,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784466637] [2021-10-28 09:02:34,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784466637] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:02:34,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602633505] [2021-10-28 09:02:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:02:34,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:34,268 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:02:34,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 09:02:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:34,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:02:34,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:02:34,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602633505] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:02:34,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:02:34,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 09:02:34,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909727529] [2021-10-28 09:02:34,399 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:02:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 2 times [2021-10-28 09:02:34,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650257778] [2021-10-28 09:02:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,417 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:34,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:34,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:02:34,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:02:34,517 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:34,544 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-10-28 09:02:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:02:34,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2021-10-28 09:02:34,549 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 09:02:34,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2021-10-28 09:02:34,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 09:02:34,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 09:02:34,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2021-10-28 09:02:34,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:34,558 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 09:02:34,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2021-10-28 09:02:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-28 09:02:34,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-10-28 09:02:34,566 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 09:02:34,567 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 09:02:34,567 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:02:34,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2021-10-28 09:02:34,568 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 09:02:34,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:34,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:34,569 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:34,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:02:34,569 INFO L791 eck$LassoCheckResult]: Stem: 430#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 417#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 418#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 410#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 411#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 438#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 439#L19-3 assume !(init_~i~0 < 2); 434#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 423#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 420#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 412#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 413#L27-3 [2021-10-28 09:02:34,570 INFO L793 eck$LassoCheckResult]: Loop: 413#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 437#L28 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 419#L27-2 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 413#L27-3 [2021-10-28 09:02:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1083197400, now seen corresponding path program 2 times [2021-10-28 09:02:34,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164940215] [2021-10-28 09:02:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,667 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,716 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:34,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 3 times [2021-10-28 09:02:34,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249585849] [2021-10-28 09:02:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,741 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:34,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1444415621, now seen corresponding path program 1 times [2021-10-28 09:02:34,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:34,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927735066] [2021-10-28 09:02:34,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:34,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:02:35,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:35,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927735066] [2021-10-28 09:02:35,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927735066] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:02:35,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923050144] [2021-10-28 09:02:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:35,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:02:35,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:35,248 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:02:35,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 09:02:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:35,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:02:35,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:02:35,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 313 treesize of output 309 [2021-10-28 09:02:35,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 11 [2021-10-28 09:02:35,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 11 [2021-10-28 09:02:35,725 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 09:02:35,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 83 [2021-10-28 09:02:35,798 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 09:02:35,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 47 [2021-10-28 09:02:36,256 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 09:02:36,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 44 [2021-10-28 09:02:36,272 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 09:02:36,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 22 [2021-10-28 09:02:36,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:02:36,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923050144] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:02:36,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:02:36,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-28 09:02:36,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955911084] [2021-10-28 09:02:36,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:02:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:02:36,374 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. cyclomatic complexity: 13 Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 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 09:02:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:37,173 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-10-28 09:02:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:02:37,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 35 transitions. [2021-10-28 09:02:37,175 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 09:02:37,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 09:02:37,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-28 09:02:37,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-28 09:02:37,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-28 09:02:37,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:37,177 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 09:02:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-28 09:02:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 09:02:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 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 09:02:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 09:02:37,181 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 09:02:37,181 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 09:02:37,181 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:02:37,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2021-10-28 09:02:37,182 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 09:02:37,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:37,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:37,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:02:37,183 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:02:37,184 INFO L791 eck$LassoCheckResult]: Stem: 555#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 543#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 544#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 536#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 537#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 563#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 564#L19-3 assume !(init_~i~0 < 2); 560#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 551#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 545#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 538#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 539#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 562#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 557#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 556#L27-7 [2021-10-28 09:02:37,184 INFO L793 eck$LassoCheckResult]: Loop: 556#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 548#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 550#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 556#L27-7 [2021-10-28 09:02:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1444415679, now seen corresponding path program 1 times [2021-10-28 09:02:37,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:37,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9875470] [2021-10-28 09:02:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:37,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:37,228 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:37,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:37,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 81589, now seen corresponding path program 1 times [2021-10-28 09:02:37,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:37,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148904582] [2021-10-28 09:02:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:37,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:37,311 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:37,317 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:37,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:37,318 INFO L85 PathProgramCache]: Analyzing trace with hash 689897333, now seen corresponding path program 1 times [2021-10-28 09:02:37,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:37,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643058241] [2021-10-28 09:02:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:37,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:37,359 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:37,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:09,994 WARN L207 SmtUtils]: Spent 32.52 s on a formula simplification. DAG size of input: 318 DAG size of output: 263 [2021-10-28 09:03:21,915 WARN L207 SmtUtils]: Spent 11.28 s on a formula simplification that was a NOOP. DAG size: 200 [2021-10-28 09:03:21,918 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:03:21,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:03:21,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:03:21,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:03:21,919 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:03:21,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:21,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:03:21,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:03:21,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: ex3_forlist.i_Iteration5_Lasso [2021-10-28 09:03:21,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:03:21,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:03:21,926 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 09:03:21,933 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 09:03:21,936 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 09:03:21,938 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 09:03:21,941 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 09:03:21,947 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 09:03:21,949 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 09:03:21,951 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 09:03:21,954 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 09:03:28,850 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 09:03:28,857 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 09:03:28,859 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 09:03:28,861 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 09:03:28,863 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 09:03:28,871 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 09:03:28,874 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 09:03:28,877 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 09:03:29,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:03:29,469 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:03:29,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,498 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:03:29,500 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 09:03:29,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:29,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:29,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:29,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,531 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,557 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 09:03:29,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,568 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:03:29,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,619 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,626 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 09:03:29,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:29,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:03:29,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:29,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:29,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,682 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:03:29,684 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 09:03:29,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,720 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:03:29,722 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 09:03:29,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,756 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:03:29,764 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 09:03:29,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:29,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:29,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:29,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,794 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:03:29,796 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 09:03:29,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:29,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:29,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:29,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 09:03:29,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,825 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:03:29,827 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 09:03:29,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:29,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:29,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:29,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,857 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:03:29,858 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 09:03:29,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,907 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:03:29,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:03:29,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 09:03:29,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,943 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:03:29,944 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 09:03:29,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:29,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:29,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:29,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:29,977 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:29,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:03:29,978 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 09:03:29,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:29,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:29,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:29,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:29,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:29,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:29,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,017 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:03:30,018 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 09:03:30,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,065 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,067 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 09:03:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:03:30,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:03:30,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:03:30,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:03:30,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,104 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:03:30,106 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 09:03:30,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 09:03:30,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,176 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:03:30,181 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 09:03:30,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,239 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:03:30,241 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 09:03:30,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,277 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:03:30,279 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 09:03:30,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 09:03:30,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,316 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:03:30,318 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 09:03:30,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,355 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:03:30,367 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 09:03:30,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:03:30,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,401 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:03:30,412 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 09:03:30,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:03:30,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:03:30,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:03:30,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:03:30,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:03:30,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:03:30,434 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:03:30,496 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-28 09:03:30,496 INFO L444 ModelExtractionUtils]: 1 out of 22 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-28 09:03:30,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:30,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:30,498 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:30,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:03:30,499 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:03:30,506 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:03:30,506 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:03:30,506 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~i~1) = -2*ULTIMATE.start_f_~i~1 + 3 Supporting invariants [] [2021-10-28 09:03:30,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:30,756 INFO L297 tatePredicateManager]: 57 out of 57 supporting invariants were superfluous and have been removed [2021-10-28 09:03:30,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:30,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:03:30,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:30,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:03:30,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:30,882 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 09:03:30,883 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 09:03:30,884 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 10 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 09:03:30,919 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 10. 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 68 states and 88 transitions. Complement of second has 6 states. [2021-10-28 09:03:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:03:30,920 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 09:03:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2021-10-28 09:03:30,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 09:03:30,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:03:30,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-28 09:03:30,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:03:30,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-28 09:03:30,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:03:30,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2021-10-28 09:03:30,929 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 09:03:30,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 43 states and 54 transitions. [2021-10-28 09:03:30,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-10-28 09:03:30,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 09:03:30,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2021-10-28 09:03:30,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:30,932 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-10-28 09:03:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2021-10-28 09:03:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-28 09:03:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-28 09:03:30,939 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 09:03:30,939 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 09:03:30,939 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:03:30,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-28 09:03:30,940 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:03:30,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:30,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:30,942 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:30,942 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:30,942 INFO L791 eck$LassoCheckResult]: Stem: 955#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 942#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 943#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 935#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 936#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 964#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 965#L19-3 assume !(init_~i~0 < 2); 961#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 947#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 946#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 940#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 941#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 963#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 957#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 958#L27-7 assume !(f_~i~1 < 2); 949#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 937#L38-3 [2021-10-28 09:03:30,943 INFO L793 eck$LassoCheckResult]: Loop: 937#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 939#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 953#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 937#L38-3 [2021-10-28 09:03:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash -809029298, now seen corresponding path program 1 times [2021-10-28 09:03:30,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:30,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270349222] [2021-10-28 09:03:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:30,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:30,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:30,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270349222] [2021-10-28 09:03:30,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270349222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:30,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:30,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:03:30,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813187739] [2021-10-28 09:03:30,990 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:03:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:30,991 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 1 times [2021-10-28 09:03:30,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:30,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760237151] [2021-10-28 09:03:30,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:30,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:30,999 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:31,005 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:31,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:31,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:03:31,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:03:31,064 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:31,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:31,088 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-28 09:03:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:03:31,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-28 09:03:31,089 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 09:03:31,092 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-28 09:03:31,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-28 09:03:31,093 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-28 09:03:31,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-28 09:03:31,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:31,097 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-28 09:03:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-28 09:03:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2021-10-28 09:03:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-28 09:03:31,101 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 09:03:31,101 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 09:03:31,101 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:03:31,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-28 09:03:31,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:03:31,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:31,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:31,102 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:31,102 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:31,103 INFO L791 eck$LassoCheckResult]: Stem: 1038#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1025#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1026#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1018#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1019#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1047#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1048#L19-3 assume !(init_~i~0 < 2); 1043#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1030#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1027#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1020#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1021#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1046#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1040#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1041#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1031#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1032#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1022#L38-3 [2021-10-28 09:03:31,103 INFO L793 eck$LassoCheckResult]: Loop: 1022#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1024#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1036#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1022#L38-3 [2021-10-28 09:03:31,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash 689897275, now seen corresponding path program 1 times [2021-10-28 09:03:31,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:31,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468804375] [2021-10-28 09:03:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:31,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:31,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:31,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468804375] [2021-10-28 09:03:31,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468804375] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:31,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:31,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:03:31,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486181002] [2021-10-28 09:03:31,334 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:03:31,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 2 times [2021-10-28 09:03:31,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:31,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972919606] [2021-10-28 09:03:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:31,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:31,339 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:31,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:31,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:31,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:03:31,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:03:31,456 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 11 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 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 09:03:31,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:31,740 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-10-28 09:03:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:03:31,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2021-10-28 09:03:31,742 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 09:03:31,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 54 transitions. [2021-10-28 09:03:31,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 09:03:31,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 09:03:31,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 54 transitions. [2021-10-28 09:03:31,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:31,743 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-28 09:03:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 54 transitions. [2021-10-28 09:03:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-28 09:03:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 30 states have internal predecessors, (37), 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 09:03:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-10-28 09:03:31,746 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 09:03:31,746 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 09:03:31,746 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:03:31,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-10-28 09:03:31,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:03:31,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:31,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:31,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:31,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:31,748 INFO L791 eck$LassoCheckResult]: Stem: 1137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1124#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1125#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1117#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1118#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1146#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1147#L19-3 assume !(init_~i~0 < 2); 1143#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1133#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1128#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1122#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1123#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1145#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1139#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1140#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1131#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1132#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1138#L27-7 assume !(f_~i~1 < 2); 1130#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1119#L38-3 [2021-10-28 09:03:31,748 INFO L793 eck$LassoCheckResult]: Loop: 1119#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1121#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1135#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1119#L38-3 [2021-10-28 09:03:31,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1566375042, now seen corresponding path program 1 times [2021-10-28 09:03:31,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:31,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020420769] [2021-10-28 09:03:31,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:31,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:31,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:31,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020420769] [2021-10-28 09:03:31,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020420769] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:31,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396282525] [2021-10-28 09:03:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:31,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:31,792 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:31,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-28 09:03:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:31,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:03:31,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:31,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396282525] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:31,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:03:31,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 09:03:31,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227551406] [2021-10-28 09:03:31,964 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:03:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:31,965 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 3 times [2021-10-28 09:03:31,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:31,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682562334] [2021-10-28 09:03:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:31,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:31,970 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:31,976 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:32,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:32,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:03:32,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:03:32,023 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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 09:03:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:32,054 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-28 09:03:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:03:32,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-28 09:03:32,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-28 09:03:32,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-28 09:03:32,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 09:03:32,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 09:03:32,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-28 09:03:32,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:32,058 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-28 09:03:32,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-28 09:03:32,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2021-10-28 09:03:32,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 33 states have internal predecessors, (41), 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 09:03:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-10-28 09:03:32,062 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 09:03:32,062 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-28 09:03:32,062 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 09:03:32,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2021-10-28 09:03:32,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:03:32,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:32,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:32,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:32,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:32,065 INFO L791 eck$LassoCheckResult]: Stem: 1276#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1263#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1264#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1256#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1257#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1286#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1287#L19-3 assume !(init_~i~0 < 2); 1281#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1268#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1265#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1258#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1259#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1284#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1278#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1279#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1271#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1272#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1277#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1269#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1270#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1260#L38-3 [2021-10-28 09:03:32,065 INFO L793 eck$LassoCheckResult]: Loop: 1260#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1262#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1274#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1260#L38-3 [2021-10-28 09:03:32,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1312987783, now seen corresponding path program 1 times [2021-10-28 09:03:32,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:32,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531679070] [2021-10-28 09:03:32,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:32,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:32,107 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:32,163 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:32,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 4 times [2021-10-28 09:03:32,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:32,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455453917] [2021-10-28 09:03:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:32,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:32,169 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:32,176 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:32,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash 951949666, now seen corresponding path program 1 times [2021-10-28 09:03:32,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:32,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442197269] [2021-10-28 09:03:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:32,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:32,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:32,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442197269] [2021-10-28 09:03:32,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442197269] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:32,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242948591] [2021-10-28 09:03:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:32,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:32,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:32,888 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:32,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-28 09:03:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:33,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 09:03:33,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:33,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 138 treesize of output 134 [2021-10-28 09:03:33,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2021-10-28 09:03:33,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2021-10-28 09:03:33,698 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 09:03:33,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 83 [2021-10-28 09:03:33,729 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-28 09:03:33,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 36 [2021-10-28 09:03:33,859 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 35 treesize of output 27 [2021-10-28 09:03:33,867 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 24 treesize of output 16 [2021-10-28 09:03:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:33,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242948591] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:33,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:03:33,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 17 [2021-10-28 09:03:33,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919118261] [2021-10-28 09:03:33,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:33,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:03:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:03:33,982 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. cyclomatic complexity: 11 Second operand has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 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 09:03:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:34,422 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-10-28 09:03:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:03:34,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 46 transitions. [2021-10-28 09:03:34,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:03:34,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 46 transitions. [2021-10-28 09:03:34,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 09:03:34,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 09:03:34,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 46 transitions. [2021-10-28 09:03:34,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:34,424 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-10-28 09:03:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 46 transitions. [2021-10-28 09:03:34,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-10-28 09:03:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 35 states have internal predecessors, (43), 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 09:03:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-10-28 09:03:34,427 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-28 09:03:34,427 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-28 09:03:34,427 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 09:03:34,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2021-10-28 09:03:34,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 09:03:34,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:34,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:34,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:34,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:03:34,429 INFO L791 eck$LassoCheckResult]: Stem: 1444#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1432#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1433#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1426#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1427#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1457#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1459#L19-3 assume !(init_~i~0 < 2); 1453#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1437#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1436#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1430#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1431#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1455#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1446#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1447#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1440#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1441#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1445#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1438#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1439#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1428#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1429#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1443#L41 [2021-10-28 09:03:34,430 INFO L793 eck$LassoCheckResult]: Loop: 1443#L41 assume 1 == g_#t~mem12; 1452#L6 havoc g_#t~mem12;call write~int(2, ~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1450#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1451#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1458#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1443#L41 [2021-10-28 09:03:34,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:34,430 INFO L85 PathProgramCache]: Analyzing trace with hash -939123286, now seen corresponding path program 1 times [2021-10-28 09:03:34,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:34,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376463380] [2021-10-28 09:03:34,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:34,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:34,472 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:34,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:34,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:34,526 INFO L85 PathProgramCache]: Analyzing trace with hash 102329555, now seen corresponding path program 1 times [2021-10-28 09:03:34,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:34,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887142509] [2021-10-28 09:03:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:34,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:34,532 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:34,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:34,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:34,538 INFO L85 PathProgramCache]: Analyzing trace with hash -289378102, now seen corresponding path program 1 times [2021-10-28 09:03:34,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:34,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776795501] [2021-10-28 09:03:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:34,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:34,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:34,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776795501] [2021-10-28 09:03:34,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776795501] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:34,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876405758] [2021-10-28 09:03:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:34,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:34,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:34,958 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:34,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-28 09:03:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:35,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 09:03:35,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:35,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 202 treesize of output 198 [2021-10-28 09:03:35,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2021-10-28 09:03:35,563 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-10-28 09:03:35,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2021-10-28 09:03:35,637 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 19 treesize of output 7 [2021-10-28 09:03:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:03:35,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876405758] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:35,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:03:35,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-28 09:03:35,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698734983] [2021-10-28 09:03:35,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:03:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:03:35,895 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. cyclomatic complexity: 11 Second operand has 18 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:36,658 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-10-28 09:03:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:03:36,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 63 transitions. [2021-10-28 09:03:36,660 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2021-10-28 09:03:36,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 63 transitions. [2021-10-28 09:03:36,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-28 09:03:36,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-28 09:03:36,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 63 transitions. [2021-10-28 09:03:36,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:03:36,661 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-28 09:03:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 63 transitions. [2021-10-28 09:03:36,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-28 09:03:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.173913043478261) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2021-10-28 09:03:36,664 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-28 09:03:36,664 INFO L587 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-28 09:03:36,664 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 09:03:36,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 54 transitions. [2021-10-28 09:03:36,664 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 09:03:36,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:36,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:36,665 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:36,665 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:03:36,666 INFO L791 eck$LassoCheckResult]: Stem: 1657#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1645#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1646#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1639#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1640#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1674#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1675#L19-3 assume !(init_~i~0 < 2); 1666#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1650#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1647#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1641#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1642#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1671#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1660#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1661#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1653#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1654#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1672#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1673#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1658#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1659#L27-7 assume !(f_~i~1 < 2); 1676#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1684#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1683#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1667#L41 [2021-10-28 09:03:36,666 INFO L793 eck$LassoCheckResult]: Loop: 1667#L41 assume 1 == g_#t~mem12; 1668#L6 havoc g_#t~mem12;call write~int(2, ~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1670#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1678#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1681#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1667#L41 [2021-10-28 09:03:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash -501415375, now seen corresponding path program 1 times [2021-10-28 09:03:36,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:36,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382389988] [2021-10-28 09:03:36,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:36,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:36,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:36,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382389988] [2021-10-28 09:03:36,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382389988] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:36,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398881778] [2021-10-28 09:03:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:36,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:36,991 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-28 09:03:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:37,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 09:03:37,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:37,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 103 treesize of output 101 [2021-10-28 09:03:37,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2021-10-28 09:03:37,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2021-10-28 09:03:37,426 INFO L354 Elim1Store]: treesize reduction 140, result has 13.0 percent of original size [2021-10-28 09:03:37,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 87 [2021-10-28 09:03:37,450 INFO L354 Elim1Store]: treesize reduction 140, result has 13.0 percent of original size [2021-10-28 09:03:37,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 40 [2021-10-28 09:03:37,563 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 37 treesize of output 25 [2021-10-28 09:03:37,566 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 22 treesize of output 10 [2021-10-28 09:03:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:37,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398881778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:37,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:03:37,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2021-10-28 09:03:37,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98491303] [2021-10-28 09:03:37,595 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:03:37,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:37,596 INFO L85 PathProgramCache]: Analyzing trace with hash 102329555, now seen corresponding path program 2 times [2021-10-28 09:03:37,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:37,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823431115] [2021-10-28 09:03:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:37,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:37,603 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:37,608 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:37,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:37,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:03:37,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:03:37,846 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. cyclomatic complexity: 13 Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:38,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:38,197 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-28 09:03:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:03:38,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 39 transitions. [2021-10-28 09:03:38,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 09:03:38,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 35 states and 38 transitions. [2021-10-28 09:03:38,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-28 09:03:38,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-28 09:03:38,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 38 transitions. [2021-10-28 09:03:38,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:03:38,199 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-28 09:03:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 38 transitions. [2021-10-28 09:03:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 09:03:38,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-28 09:03:38,202 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-28 09:03:38,202 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-28 09:03:38,202 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 09:03:38,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 38 transitions. [2021-10-28 09:03:38,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 09:03:38,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:38,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:38,204 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:38,204 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:03:38,205 INFO L791 eck$LassoCheckResult]: Stem: 1837#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(14);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call ~#pp~0.base, ~#pp~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset, 4);call write~init~$Pointer$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 1827#L-1 havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 1828#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1821#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1822#L19-3 assume !!(init_~i~0 < 2);call write~$Pointer$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 1851#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 1853#L19-3 assume !(init_~i~0 < 2); 1848#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1834#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 1831#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 1825#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1826#L27-3 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1850#L28 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1839#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 1840#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1832#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1833#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1838#L27-7 assume !!(f_~i~1 < 2);call f_#t~mem9.base, f_#t~mem9.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1855#L28-1 assume f_#t~mem9.base == 0 && f_#t~mem9.offset == 0;havoc f_#t~mem9.base, f_#t~mem9.offset;call write~$Pointer$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 1841#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1842#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1852#L39 assume g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset;havoc g_#t~mem11.base, g_#t~mem11.offset;call g_#t~mem12 := read~int(~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1846#L41 assume 1 == g_#t~mem12; 1847#L6 havoc g_#t~mem12;call write~int(2, ~#pstate~0.base, ~#pstate~0.offset + 4 * g_~i~2, 4); 1845#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1823#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1824#L39 [2021-10-28 09:03:38,205 INFO L793 eck$LassoCheckResult]: Loop: 1824#L39 assume !(g_#t~mem11.base == g_~pointer.base && g_#t~mem11.offset == g_~pointer.offset);havoc g_#t~mem11.base, g_#t~mem11.offset; 1836#L38-2 g_#t~post10 := g_~i~2;g_~i~2 := 1 + g_#t~post10;havoc g_#t~post10; 1854#L38-3 assume !!(g_~i~2 < 2);call g_#t~mem11.base, g_#t~mem11.offset := read~$Pointer$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1824#L39 [2021-10-28 09:03:38,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash -147882112, now seen corresponding path program 2 times [2021-10-28 09:03:38,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:38,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967303755] [2021-10-28 09:03:38,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:38,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:38,262 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:38,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:38,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash 115236, now seen corresponding path program 5 times [2021-10-28 09:03:38,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:38,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929625838] [2021-10-28 09:03:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:38,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:38,328 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:38,331 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1080532549, now seen corresponding path program 1 times [2021-10-28 09:03:38,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:38,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760204706] [2021-10-28 09:03:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:38,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:03:38,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:38,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760204706] [2021-10-28 09:03:38,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760204706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:03:38,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562919603] [2021-10-28 09:03:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:38,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:03:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:38,396 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:03:38,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-28 09:03:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:38,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:03:38,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:03:38,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562919603] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:38,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:03:38,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-28 09:03:38,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212613533] [2021-10-28 09:03:38,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:03:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:03:38,766 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 09:03:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:38,799 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-28 09:03:38,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:03:38,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 43 transitions. [2021-10-28 09:03:38,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:03:38,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-10-28 09:03:38,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:03:38,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:03:38,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:03:38,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:03:38,807 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:03:38,807 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:03:38,807 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:03:38,807 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 09:03:38,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:03:38,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:03:38,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:03:38,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:03:38 BoogieIcfgContainer [2021-10-28 09:03:38,813 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:03:38,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:03:38,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:03:38,814 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:03:38,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:27" (3/4) ... [2021-10-28 09:03:38,818 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:03:38,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:03:38,819 INFO L168 Benchmark]: Toolchain (without parser) took 71816.44 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 65.5 MB in the beginning and 97.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:38,819 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 51.6 MB in the beginning and 51.5 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:03:38,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.10 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 73.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:38,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:38,821 INFO L168 Benchmark]: Boogie Preprocessor took 50.15 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 69.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:03:38,821 INFO L168 Benchmark]: RCFGBuilder took 537.91 ms. Allocated memory is still 98.6 MB. Free memory was 69.8 MB in the beginning and 54.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:38,822 INFO L168 Benchmark]: BuchiAutomizer took 70856.21 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 54.7 MB in the beginning and 97.2 MB in the end (delta: -42.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:03:38,822 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 169.9 MB. Free memory is still 97.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:03:38,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 51.6 MB in the beginning and 51.5 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.10 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 73.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.30 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.15 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 69.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 537.91 ms. Allocated memory is still 98.6 MB. Free memory was 69.8 MB in the beginning and 54.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 70856.21 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 54.7 MB in the beginning and 97.2 MB in the end (delta: -42.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.89 ms. Allocated memory is still 169.9 MB. Free memory is still 97.2 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 12 terminating modules (10 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 3 * unknown-#length-unknown[pp] + -8 * i and consists of 5 locations. One deterministic module has affine ranking function 3 + -2 * i and consists of 4 locations. 10 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 70.7s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 67.2s. Construction of modules took 1.0s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 65 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 46 states and ocurred in iteration 10. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 295 SDtfs, 479 SDslu, 759 SDs, 0 SdLazy, 1071 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc4 concLT0 SILN0 SILU6 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital1582 mio100 ax100 hnf100 lsp97 ukn23 mio100 lsp35 div100 bol100 ite100 ukn100 eq178 hnf92 smp100 dnf107 smp100 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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 09:03:38,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:39,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-10-28 09:03:39,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-28 09:03:39,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:39,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-10-28 09:03:39,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:40,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-28 09:03:40,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e404b06-26c0-4577-bff3-2d42efbc9095/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...