./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/ex3_forlist.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be --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-e943c26 [2021-10-21 19:41:35,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:41:35,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:41:35,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:41:35,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:41:35,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:41:35,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:41:35,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:41:35,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:41:35,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:41:35,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:41:35,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:41:35,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:41:35,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:41:35,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:41:35,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:41:35,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:41:35,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:41:35,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:41:35,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:41:35,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:41:35,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:41:35,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:41:35,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:41:35,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:41:35,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:41:35,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:41:35,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:41:35,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:41:35,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:41:35,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:41:35,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:41:35,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:41:35,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:41:35,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:41:35,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:41:35,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:41:35,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:41:35,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:41:35,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:41:35,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:41:35,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:41:35,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:41:35,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:41:35,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:41:35,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:41:35,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:41:35,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:41:35,702 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:41:35,702 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:41:35,703 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:41:35,703 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:41:35,703 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:41:35,703 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:41:35,704 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:41:35,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:41:35,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:41:35,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:41:35,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:41:35,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:41:35,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:41:35,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:41:35,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:41:35,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:41:35,706 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:41:35,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:41:35,706 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:41:35,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:41:35,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:41:35,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:41:35,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:41:35,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:41:35,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:41:35,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:41:35,711 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:41:35,712 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_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fdb29d081e8788960943f1182fbfb10ca7dcdfe7c31b22aaab16bda45fd1b8 [2021-10-21 19:41:36,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:41:36,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:41:36,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:41:36,070 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:41:36,072 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:41:36,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-regression/ex3_forlist.i [2021-10-21 19:41:36,184 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/data/dffc12719/62985f2af7074c088bd689ea52709f48/FLAG421921b95 [2021-10-21 19:41:36,746 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:41:36,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/sv-benchmarks/c/ldv-regression/ex3_forlist.i [2021-10-21 19:41:36,754 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/data/dffc12719/62985f2af7074c088bd689ea52709f48/FLAG421921b95 [2021-10-21 19:41:37,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/data/dffc12719/62985f2af7074c088bd689ea52709f48 [2021-10-21 19:41:37,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:41:37,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:41:37,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:37,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:41:37,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:41:37,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a11ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37, skipping insertion in model container [2021-10-21 19:41:37,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:41:37,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:41:37,305 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_ae655f34-870b-4438-ab26-0d4372f071ae/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2021-10-21 19:41:37,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:37,341 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:41:37,354 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_ae655f34-870b-4438-ab26-0d4372f071ae/sv-benchmarks/c/ldv-regression/ex3_forlist.i[293,306] [2021-10-21 19:41:37,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:37,387 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:41:37,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37 WrapperNode [2021-10-21 19:41:37,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:37,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:41:37,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:41:37,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:41:37,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:41:37,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:41:37,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:41:37,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:41:37,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:41:37,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:41:37,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:41:37,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:41:37,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (1/1) ... [2021-10-21 19:41:37,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:37,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:37,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:37,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:41:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:41:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:41:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:41:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:41:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:41:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:41:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:41:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:41:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:41:38,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:41:38,078 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-21 19:41:38,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:38 BoogieIcfgContainer [2021-10-21 19:41:38,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:41:38,082 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:41:38,082 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:41:38,085 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:41:38,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:41:38,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:41:37" (1/3) ... [2021-10-21 19:41:38,102 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4846aacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:41:38, skipping insertion in model container [2021-10-21 19:41:38,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:41:38,102 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:37" (2/3) ... [2021-10-21 19:41:38,103 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4846aacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:41:38, skipping insertion in model container [2021-10-21 19:41:38,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:41:38,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:38" (3/3) ... [2021-10-21 19:41:38,104 INFO L389 chiAutomizerObserver]: Analyzing ICFG ex3_forlist.i [2021-10-21 19:41:38,187 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:41:38,199 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:41:38,199 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:41:38,200 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:41:38,200 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:41:38,200 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:41:38,200 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:41:38,200 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:41:38,217 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) [2021-10-21 19:41:38,240 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-21 19:41:38,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:41:38,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:41:38,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:41:38,246 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:41:38,246 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:41:38,246 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) [2021-10-21 19:41:38,249 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-21 19:41:38,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:41:38,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:41:38,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:41:38,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:41:38,257 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$(0, 0, ~#pp~0.base, 4 + ~#pp~0.offset, 4);call ~#pstate~0.base, ~#pstate~0.offset := #Ultimate.allocOnStack(8);call write~init~int(0, ~#pstate~0.base, ~#pstate~0.offset, 4);call write~init~int(0, ~#pstate~0.base, 4 + ~#pstate~0.offset, 4);~counter~0 := 1; 7#L-1true havoc main_#res;havoc main_#t~ret14.base, main_#t~ret14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~a~0.base, main_~a~0.offset, main_~b~0.base, main_~b~0.offset;havoc main_~a~0.base, main_~a~0.offset;havoc main_~b~0.base, main_~b~0.offset;havoc init_#t~post7, init_~i~0;havoc init_~i~0;init_~i~0 := 0; 34#L19-3true [2021-10-21 19:41:38,257 INFO L793 eck$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 [2021-10-21 19:41:38,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:38,263 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:41:38,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:38,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422417343] [2021-10-21 19:41:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:38,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:38,425 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:38,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:38,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:38,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-21 19:41:38,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:38,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014684149] [2021-10-21 19:41:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:38,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:38,559 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:38,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:38,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:38,585 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-21 19:41:38,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:38,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783444981] [2021-10-21 19:41:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:38,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:38,629 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:38,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:40,095 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:41:40,096 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:41:40,096 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:41:40,097 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:41:40,097 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:41:40,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:40,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:41:40,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:41:40,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: ex3_forlist.i_Iteration1_Lasso [2021-10-21 19:41:40,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:41:40,099 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:41:40,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:40,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:41:41,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:41:41,272 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:41:41,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,290 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 [2021-10-21 19:41:41,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:41,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:41,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:41,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:41:41,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,350 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:41:41,359 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 [2021-10-21 19:41:41,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:41,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:41,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,432 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 [2021-10-21 19:41:41,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:41,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:41,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:41,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:41:41,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:41:41,501 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 [2021-10-21 19:41:41,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:41,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:41,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:41,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,570 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 [2021-10-21 19:41:41,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:41,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:41,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:41:41,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,659 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 [2021-10-21 19:41:41,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:41,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:41,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:41,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:41:41,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,731 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,739 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 [2021-10-21 19:41:41,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:41,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:41,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:41,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:41:41,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,798 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,805 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 [2021-10-21 19:41:41,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:41,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:41,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:41,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:41:41,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,876 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,882 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 [2021-10-21 19:41:41,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:41:41,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:41,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:41,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:41,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:41,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:41,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,954 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:41:41,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:41,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:41,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:41,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:41,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:41,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:41,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:41:42,056 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 [2021-10-21 19:41:42,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:42,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:42,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:42,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,121 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:41:42,123 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 [2021-10-21 19:41:42,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:42,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:42,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:42,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-21 19:41:42,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,155 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:41:42,157 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 [2021-10-21 19:41:42,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,232 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,253 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 [2021-10-21 19:41:42,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:42,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:42,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:42,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:41:42,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,319 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:41:42,325 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 [2021-10-21 19:41:42,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,382 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:41:42,387 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 [2021-10-21 19:41:42,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,468 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,474 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 [2021-10-21 19:41:42,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:41:42,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,530 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:41:42,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:41:42,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,606 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:41:42,609 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 [2021-10-21 19:41:42,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,657 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:41:42,665 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 [2021-10-21 19:41:42,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,755 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,760 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 [2021-10-21 19:41:42,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:41:42,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,779 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,844 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,848 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 [2021-10-21 19:41:42,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:41:42,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,898 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:41:42,903 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 [2021-10-21 19:41:42,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:42,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:42,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:42,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 19:41:42,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,945 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:41:42,947 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 [2021-10-21 19:41:42,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:42,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:42,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:42,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:42,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:42,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,987 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:41:42,988 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 [2021-10-21 19:41:42,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:42,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:42,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:42,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:42,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:42,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:42,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:43,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,041 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:41:43,044 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 [2021-10-21 19:41:43,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:43,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:43,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-21 19:41:43,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,080 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,081 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 [2021-10-21 19:41:43,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:41:43,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:43,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:43,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-21 19:41:43,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,156 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:41:43,158 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 [2021-10-21 19:41:43,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:41:43,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:41:43,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:41:43,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-21 19:41:43,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,193 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:41:43,194 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 [2021-10-21 19:41:43,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:43,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:43,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,231 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:41:43,232 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 [2021-10-21 19:41:43,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:43,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:43,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,283 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:41:43,285 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 [2021-10-21 19:41:43,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:43,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:43,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:41:43,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,321 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:41:43,322 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 [2021-10-21 19:41:43,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:41:43,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:41:43,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:41:43,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:41:43,335 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:41:43,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:41:43,349 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:41:43,402 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-21 19:41:43,403 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-21 19:41:43,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:41:43,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,412 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,414 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:41:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:41:43,456 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:41:43,456 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:41:43,457 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 [] [2021-10-21 19:41:43,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 19:41:43,656 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2021-10-21 19:41:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:43,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:41:43,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:43,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:41:43,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:43,813 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:41:43,814 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) [2021-10-21 19:41:43,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 19:41:43,934 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. [2021-10-21 19:41:43,935 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 [2021-10-21 19:41:43,937 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) [2021-10-21 19:41:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2021-10-21 19:41:43,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 19:41:43,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:41:43,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:41:43,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:41:43,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 92 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 19:41:43,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:41:43,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 136 transitions. [2021-10-21 19:41:43,963 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-21 19:41:43,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 28 states and 37 transitions. [2021-10-21 19:41:43,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-21 19:41:43,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-21 19:41:43,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2021-10-21 19:41:43,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:41:43,973 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-21 19:41:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2021-10-21 19:41:43,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-21 19:41:43,997 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) [2021-10-21 19:41:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-10-21 19:41:43,999 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-21 19:41:43,999 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-21 19:41:43,999 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:41:43,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2021-10-21 19:41:44,003 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-21 19:41:44,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:41:44,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:41:44,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:44,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:41:44,005 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 [2021-10-21 19:41:44,005 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 [2021-10-21 19:41:44,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1807951404, now seen corresponding path program 1 times [2021-10-21 19:41:44,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798985708] [2021-10-21 19:41:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:44,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:44,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798985708] [2021-10-21 19:41:44,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798985708] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:44,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:44,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:41:44,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725049380] [2021-10-21 19:41:44,095 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:41:44,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,096 INFO L82 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 1 times [2021-10-21 19:41:44,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836054274] [2021-10-21 19:41:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,109 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:44,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:41:44,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:41:44,189 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) [2021-10-21 19:41:44,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:44,209 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-10-21 19:41:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:41:44,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2021-10-21 19:41:44,213 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-21 19:41:44,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 37 transitions. [2021-10-21 19:41:44,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-21 19:41:44,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-21 19:41:44,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2021-10-21 19:41:44,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:41:44,217 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-10-21 19:41:44,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2021-10-21 19:41:44,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-21 19:41:44,223 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) [2021-10-21 19:41:44,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-21 19:41:44,224 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-21 19:41:44,224 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-21 19:41:44,224 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:41:44,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-21 19:41:44,229 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-21 19:41:44,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:41:44,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:41:44,230 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:44,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:41:44,230 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 [2021-10-21 19:41:44,230 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 [2021-10-21 19:41:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,231 INFO L82 PathProgramCache]: Analyzing trace with hash -369325334, now seen corresponding path program 1 times [2021-10-21 19:41:44,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517637669] [2021-10-21 19:41:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:44,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:44,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:44,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517637669] [2021-10-21 19:41:44,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517637669] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:44,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773980147] [2021-10-21 19:41:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:44,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:44,301 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:44,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-21 19:41:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:44,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:41:44,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:44,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773980147] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:44,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:41:44,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:41:44,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278335139] [2021-10-21 19:41:44,404 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:41:44,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,404 INFO L82 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 2 times [2021-10-21 19:41:44,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488188138] [2021-10-21 19:41:44,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,409 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:44,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:41:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:41:44,463 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) [2021-10-21 19:41:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:44,485 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-10-21 19:41:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:41:44,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2021-10-21 19:41:44,487 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-21 19:41:44,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2021-10-21 19:41:44,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-21 19:41:44,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-21 19:41:44,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2021-10-21 19:41:44,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:41:44,488 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-21 19:41:44,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2021-10-21 19:41:44,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 19:41:44,491 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) [2021-10-21 19:41:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-10-21 19:41:44,491 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-21 19:41:44,491 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-21 19:41:44,492 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:41:44,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2021-10-21 19:41:44,492 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-21 19:41:44,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:41:44,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:41:44,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:44,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:41:44,493 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$(0, 0, ~#pp~0.base, ~#pp~0.offset + 4 * init_~i~0, 4);call write~int(0, ~#pstate~0.base, ~#pstate~0.offset + 4 * init_~i~0, 4); 438#L19-2 init_#t~post7 := init_~i~0;init_~i~0 := 1 + init_#t~post7;havoc init_#t~post7; 439#L19-3 assume !(init_~i~0 < 2); 434#L17 malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 423#L49 main_#t~ret14.base, main_#t~ret14.offset := malloc_#res.base, malloc_#res.offset;main_~a~0.base, main_~a~0.offset := main_#t~ret14.base, main_#t~ret14.offset;havoc main_#t~ret14.base, main_#t~ret14.offset;malloc_#in~size := 4;havoc malloc_#res.base, malloc_#res.offset;havoc malloc_#t~post13, malloc_~size;malloc_~size := malloc_#in~size;malloc_#t~post13 := ~counter~0;~counter~0 := 1 + malloc_#t~post13;malloc_#res.base, malloc_#res.offset := 0, malloc_#t~post13;havoc malloc_#t~post13; 420#L49-1 main_#t~ret15.base, main_#t~ret15.offset := malloc_#res.base, malloc_#res.offset;main_~b~0.base, main_~b~0.offset := main_#t~ret15.base, main_#t~ret15.offset;havoc main_#t~ret15.base, main_#t~ret15.offset; 412#L59 assume !((main_~a~0.base == 0 && main_~a~0.offset == 0) || (main_~b~0.base == 0 && main_~b~0.offset == 0));f_#in~pointer.base, f_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 413#L27-3 [2021-10-21 19:41:44,494 INFO L793 eck$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 [2021-10-21 19:41:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1083197400, now seen corresponding path program 2 times [2021-10-21 19:41:44,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440074301] [2021-10-21 19:41:44,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,525 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:44,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,588 INFO L82 PathProgramCache]: Analyzing trace with hash 62722, now seen corresponding path program 3 times [2021-10-21 19:41:44,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734709911] [2021-10-21 19:41:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,595 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:44,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:44,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1444415621, now seen corresponding path program 1 times [2021-10-21 19:41:44,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484082378] [2021-10-21 19:41:44,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:45,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:45,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484082378] [2021-10-21 19:41:45,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484082378] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:45,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832696856] [2021-10-21 19:41:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:45,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:45,024 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:45,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-21 19:41:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:45,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:41:45,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:45,142 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 [2021-10-21 19:41:45,278 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 [2021-10-21 19:41:45,290 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 [2021-10-21 19:41:45,431 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-21 19:41:45,431 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 [2021-10-21 19:41:45,469 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-21 19:41:45,470 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 [2021-10-21 19:41:45,855 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-21 19:41:45,856 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 [2021-10-21 19:41:45,867 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-21 19:41:45,868 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 [2021-10-21 19:41:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:45,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832696856] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:45,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:41:45,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-21 19:41:45,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255889131] [2021-10-21 19:41:45,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:41:45,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:41:45,947 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) [2021-10-21 19:41:46,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:46,690 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-10-21 19:41:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:41:46,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 35 transitions. [2021-10-21 19:41:46,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-21 19:41:46,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 35 transitions. [2021-10-21 19:41:46,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-21 19:41:46,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-21 19:41:46,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-21 19:41:46,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:41:46,693 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-21 19:41:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-21 19:41:46,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-21 19:41:46,695 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) [2021-10-21 19:41:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-10-21 19:41:46,696 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-21 19:41:46,696 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-21 19:41:46,696 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:41:46,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2021-10-21 19:41:46,696 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-21 19:41:46,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:41:46,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:41:46,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:46,697 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:41:46,697 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$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 557#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 556#L27-7 [2021-10-21 19:41:46,697 INFO L793 eck$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 [2021-10-21 19:41:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:46,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1444415679, now seen corresponding path program 1 times [2021-10-21 19:41:46,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:46,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763566008] [2021-10-21 19:41:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:46,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:46,751 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:46,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:46,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:46,815 INFO L82 PathProgramCache]: Analyzing trace with hash 81589, now seen corresponding path program 1 times [2021-10-21 19:41:46,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:46,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837387717] [2021-10-21 19:41:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:46,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:46,818 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:46,821 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:46,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:46,822 INFO L82 PathProgramCache]: Analyzing trace with hash 689897333, now seen corresponding path program 1 times [2021-10-21 19:41:46,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:46,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931399738] [2021-10-21 19:41:46,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:46,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:46,854 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:41:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:41:46,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:14,785 WARN L207 SmtUtils]: Spent 27.82 s on a formula simplification. DAG size of input: 318 DAG size of output: 263 [2021-10-21 19:42:25,402 WARN L207 SmtUtils]: Spent 10.01 s on a formula simplification that was a NOOP. DAG size: 200 [2021-10-21 19:42:25,406 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:42:25,406 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:42:25,406 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:42:25,406 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:42:25,406 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:42:25,406 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:25,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:42:25,406 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:42:25,406 INFO L133 ssoRankerPreferences]: Filename of dumped script: ex3_forlist.i_Iteration5_Lasso [2021-10-21 19:42:25,407 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:42:25,407 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:42:25,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:25,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:31,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:42:32,238 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:42:32,238 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:42:32,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,243 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:42:32,245 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 [2021-10-21 19:42:32,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:42:32,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:42:32,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:42:32,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,283 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,313 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 [2021-10-21 19:42:32,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,327 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:42:32,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,388 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,392 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 [2021-10-21 19:42:32,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:42:32,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:42:32,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:42:32,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:42:32,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,453 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:42:32,454 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 [2021-10-21 19:42:32,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-21 19:42:32,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,497 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:42:32,499 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 [2021-10-21 19:42:32,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-21 19:42:32,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,541 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:42:32,544 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 [2021-10-21 19:42:32,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:42:32,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:42:32,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:42:32,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 19:42:32,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,592 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:42:32,594 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 [2021-10-21 19:42:32,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:42:32,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:42:32,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:42:32,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,629 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:42:32,631 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 [2021-10-21 19:42:32,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:42:32,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:42:32,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:42:32,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 19:42:32,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,682 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:42:32,684 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 [2021-10-21 19:42:32,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,728 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:42:32,729 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 [2021-10-21 19:42:32,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,768 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,771 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 [2021-10-21 19:42:32,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:42:32,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,848 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,850 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 [2021-10-21 19:42:32,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 19:42:32,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:32,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:32,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:32,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:32,939 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:32,941 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 [2021-10-21 19:42:32,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:32,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:32,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:32,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:32,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:32,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:32,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 19:42:32,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,018 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,020 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 [2021-10-21 19:42:33,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 19:42:33,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,087 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 19:42:33,090 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 [2021-10-21 19:42:33,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:42:33,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:42:33,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:42:33,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,129 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 19:42:33,132 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 [2021-10-21 19:42:33,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,171 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 19:42:33,173 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 [2021-10-21 19:42:33,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,210 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 19:42:33,212 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 [2021-10-21 19:42:33,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,251 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 19:42:33,252 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 [2021-10-21 19:42:33,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,293 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 19:42:33,296 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 [2021-10-21 19:42:33,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:42:33,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-21 19:42:33,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,339 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 19:42:33,341 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 [2021-10-21 19:42:33,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:42:33,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:42:33,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:42:33,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:42:33,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:42:33,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:42:33,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:42:33,458 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-21 19:42:33,458 INFO L444 ModelExtractionUtils]: 1 out of 22 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-21 19:42:33,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:33,464 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:33,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:42:33,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 19:42:33,492 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:42:33,493 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:42:33,493 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~i~1) = -2*ULTIMATE.start_f_~i~1 + 3 Supporting invariants [] [2021-10-21 19:42:33,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,840 INFO L297 tatePredicateManager]: 57 out of 57 supporting invariants were superfluous and have been removed [2021-10-21 19:42:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:33,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:33,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:42:33,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:34,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:42:34,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:34,032 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 [2021-10-21 19:42:34,032 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) [2021-10-21 19:42:34,055 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. [2021-10-21 19:42:34,055 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 [2021-10-21 19:42:34,056 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) [2021-10-21 19:42:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2021-10-21 19:42:34,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-21 19:42:34,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:42:34,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-21 19:42:34,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:42:34,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-21 19:42:34,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:42:34,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2021-10-21 19:42:34,060 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-21 19:42:34,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 43 states and 54 transitions. [2021-10-21 19:42:34,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-10-21 19:42:34,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 19:42:34,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2021-10-21 19:42:34,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:42:34,062 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-10-21 19:42:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2021-10-21 19:42:34,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-21 19:42:34,065 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) [2021-10-21 19:42:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-21 19:42:34,066 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:42:34,066 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:42:34,066 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:42:34,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-21 19:42:34,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 19:42:34,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:34,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:34,068 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:34,068 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:42:34,068 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$(f_~pointer.base, f_~pointer.offset, ~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4);call write~int(1, ~#pstate~0.base, ~#pstate~0.offset + 4 * f_~i~1, 4); 957#L25 f_#in~pointer.base, f_#in~pointer.offset := main_~b~0.base, main_~b~0.offset;havoc f_#t~mem9.base, f_#t~mem9.offset, f_#t~post8, f_~pointer.base, f_~pointer.offset, f_~i~1;f_~pointer.base, f_~pointer.offset := f_#in~pointer.base, f_#in~pointer.offset;havoc f_~i~1;f_~i~1 := 0; 958#L27-7 assume !(f_~i~1 < 2); 949#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 937#L38-3 [2021-10-21 19:42:34,069 INFO L793 eck$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 [2021-10-21 19:42:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash -809029298, now seen corresponding path program 1 times [2021-10-21 19:42:34,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:34,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366635082] [2021-10-21 19:42:34,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:34,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:34,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:34,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366635082] [2021-10-21 19:42:34,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366635082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:34,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:34,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:42:34,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690073035] [2021-10-21 19:42:34,103 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:42:34,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:34,104 INFO L82 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 1 times [2021-10-21 19:42:34,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:34,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653628400] [2021-10-21 19:42:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:34,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:34,109 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:34,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:34,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:34,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:42:34,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:42:34,176 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) [2021-10-21 19:42:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:34,201 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-21 19:42:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:42:34,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-21 19:42:34,203 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-21 19:42:34,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-21 19:42:34,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-21 19:42:34,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-21 19:42:34,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-21 19:42:34,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:42:34,205 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-21 19:42:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-21 19:42:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2021-10-21 19:42:34,208 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) [2021-10-21 19:42:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-21 19:42:34,208 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:42:34,208 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:42:34,208 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:42:34,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-21 19:42:34,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 19:42:34,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:34,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:34,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:34,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:42:34,210 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 [2021-10-21 19:42:34,211 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 [2021-10-21 19:42:34,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:34,211 INFO L82 PathProgramCache]: Analyzing trace with hash 689897275, now seen corresponding path program 1 times [2021-10-21 19:42:34,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:34,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600593220] [2021-10-21 19:42:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:34,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:34,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:34,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600593220] [2021-10-21 19:42:34,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600593220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:34,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:34,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:42:34,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656934469] [2021-10-21 19:42:34,463 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:42:34,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:34,464 INFO L82 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 2 times [2021-10-21 19:42:34,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:34,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205840527] [2021-10-21 19:42:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:34,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:34,469 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:34,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:34,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:34,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:42:34,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:42:34,534 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) [2021-10-21 19:42:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:34,863 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-10-21 19:42:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:42:34,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2021-10-21 19:42:34,865 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-21 19:42:34,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 54 transitions. [2021-10-21 19:42:34,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 19:42:34,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 19:42:34,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 54 transitions. [2021-10-21 19:42:34,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:42:34,866 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-21 19:42:34,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 54 transitions. [2021-10-21 19:42:34,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-10-21 19:42:34,869 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) [2021-10-21 19:42:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-10-21 19:42:34,869 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-21 19:42:34,869 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-21 19:42:34,870 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:42:34,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-10-21 19:42:34,870 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 19:42:34,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:34,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:34,871 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:34,871 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:42:34,871 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$(~#pp~0.base, ~#pp~0.offset + 4 * f_~i~1, 4); 1131#L28-1 assume !(f_#t~mem9.base == 0 && f_#t~mem9.offset == 0);havoc f_#t~mem9.base, f_#t~mem9.offset; 1132#L27-6 f_#t~post8 := f_~i~1;f_~i~1 := 1 + f_#t~post8;havoc f_#t~post8; 1138#L27-7 assume !(f_~i~1 < 2); 1130#L25-1 g_#in~pointer.base, g_#in~pointer.offset := main_~a~0.base, main_~a~0.offset;havoc g_#t~mem11.base, g_#t~mem11.offset, g_#t~mem12, g_#t~post10, g_~pointer.base, g_~pointer.offset, g_~i~2;g_~pointer.base, g_~pointer.offset := g_#in~pointer.base, g_#in~pointer.offset;havoc g_~i~2;g_~i~2 := 0; 1119#L38-3 [2021-10-21 19:42:34,871 INFO L793 eck$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 [2021-10-21 19:42:34,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:34,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1566375042, now seen corresponding path program 1 times [2021-10-21 19:42:34,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:34,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217274944] [2021-10-21 19:42:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:34,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:34,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:34,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217274944] [2021-10-21 19:42:34,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217274944] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:34,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886211464] [2021-10-21 19:42:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:34,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:42:34,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:34,910 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:42:34,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-21 19:42:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:35,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:42:35,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:35,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886211464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:35,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:42:35,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:42:35,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144579241] [2021-10-21 19:42:35,112 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:42:35,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:35,112 INFO L82 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 3 times [2021-10-21 19:42:35,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:35,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055452085] [2021-10-21 19:42:35,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:35,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:35,117 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:35,121 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:35,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:35,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:42:35,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:42:35,186 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) [2021-10-21 19:42:35,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:35,216 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-21 19:42:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:42:35,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-21 19:42:35,220 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20 [2021-10-21 19:42:35,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2021-10-21 19:42:35,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 19:42:35,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 19:42:35,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2021-10-21 19:42:35,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:42:35,221 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-21 19:42:35,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2021-10-21 19:42:35,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2021-10-21 19:42:35,224 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) [2021-10-21 19:42:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-10-21 19:42:35,224 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-21 19:42:35,224 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-21 19:42:35,224 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:42:35,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2021-10-21 19:42:35,225 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 19:42:35,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:35,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:35,226 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:35,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:42:35,226 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 [2021-10-21 19:42:35,226 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 [2021-10-21 19:42:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:35,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1312987783, now seen corresponding path program 1 times [2021-10-21 19:42:35,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:35,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308042204] [2021-10-21 19:42:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:35,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:35,262 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:35,304 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:35,305 INFO L82 PathProgramCache]: Analyzing trace with hash 100776, now seen corresponding path program 4 times [2021-10-21 19:42:35,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:35,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445192431] [2021-10-21 19:42:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:35,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:35,309 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:35,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:35,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:35,314 INFO L82 PathProgramCache]: Analyzing trace with hash 951949666, now seen corresponding path program 1 times [2021-10-21 19:42:35,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:35,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760181134] [2021-10-21 19:42:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:35,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:36,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:36,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760181134] [2021-10-21 19:42:36,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760181134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:36,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690127327] [2021-10-21 19:42:36,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:36,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:42:36,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:36,023 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:42:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-21 19:42:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:36,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-21 19:42:36,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:36,179 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 [2021-10-21 19:42:36,573 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 [2021-10-21 19:42:36,580 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 [2021-10-21 19:42:36,978 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-21 19:42:36,979 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 [2021-10-21 19:42:37,017 INFO L354 Elim1Store]: treesize reduction 126, result has 13.1 percent of original size [2021-10-21 19:42:37,018 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 [2021-10-21 19:42:37,170 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 [2021-10-21 19:42:37,185 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 [2021-10-21 19:42:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:37,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690127327] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:37,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:42:37,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 17 [2021-10-21 19:42:37,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718311889] [2021-10-21 19:42:37,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:37,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:42:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:42:37,297 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) [2021-10-21 19:42:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:37,806 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-10-21 19:42:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:42:37,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 46 transitions. [2021-10-21 19:42:37,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 19:42:37,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 46 transitions. [2021-10-21 19:42:37,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-21 19:42:37,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-21 19:42:37,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 46 transitions. [2021-10-21 19:42:37,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:42:37,809 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-10-21 19:42:37,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 46 transitions. [2021-10-21 19:42:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-10-21 19:42:37,812 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) [2021-10-21 19:42:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-10-21 19:42:37,812 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-21 19:42:37,812 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-21 19:42:37,813 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:42:37,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2021-10-21 19:42:37,813 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-21 19:42:37,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:37,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:37,814 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] [2021-10-21 19:42:37,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-21 19:42:37,815 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 [2021-10-21 19:42:37,815 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 [2021-10-21 19:42:37,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:37,815 INFO L82 PathProgramCache]: Analyzing trace with hash -939123286, now seen corresponding path program 1 times [2021-10-21 19:42:37,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:37,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72864577] [2021-10-21 19:42:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:37,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:37,864 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:37,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:37,921 INFO L82 PathProgramCache]: Analyzing trace with hash 102329555, now seen corresponding path program 1 times [2021-10-21 19:42:37,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:37,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243113633] [2021-10-21 19:42:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:37,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:37,928 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:37,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:37,934 INFO L82 PathProgramCache]: Analyzing trace with hash -289378102, now seen corresponding path program 1 times [2021-10-21 19:42:37,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:37,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288154868] [2021-10-21 19:42:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:37,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:38,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:38,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288154868] [2021-10-21 19:42:38,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288154868] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:38,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493737214] [2021-10-21 19:42:38,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:38,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:42:38,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:38,336 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:42:38,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-21 19:42:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:38,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 19:42:38,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:38,569 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 [2021-10-21 19:42:38,856 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 [2021-10-21 19:42:39,000 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-10-21 19:42:39,001 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 [2021-10-21 19:42:39,092 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 [2021-10-21 19:42:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:42:39,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493737214] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:39,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:42:39,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-21 19:42:39,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508517627] [2021-10-21 19:42:39,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:42:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:42:39,341 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) [2021-10-21 19:42:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:40,057 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-10-21 19:42:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-21 19:42:40,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 63 transitions. [2021-10-21 19:42:40,059 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2021-10-21 19:42:40,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 63 transitions. [2021-10-21 19:42:40,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-21 19:42:40,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-21 19:42:40,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 63 transitions. [2021-10-21 19:42:40,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:42:40,061 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-21 19:42:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 63 transitions. [2021-10-21 19:42:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-21 19:42:40,064 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) [2021-10-21 19:42:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2021-10-21 19:42:40,065 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-21 19:42:40,065 INFO L587 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-21 19:42:40,065 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:42:40,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 54 transitions. [2021-10-21 19:42:40,066 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-21 19:42:40,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:40,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:40,067 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] [2021-10-21 19:42:40,067 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-21 19:42:40,067 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 [2021-10-21 19:42:40,068 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 [2021-10-21 19:42:40,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:40,068 INFO L82 PathProgramCache]: Analyzing trace with hash -501415375, now seen corresponding path program 1 times [2021-10-21 19:42:40,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:40,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932965878] [2021-10-21 19:42:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:40,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:40,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:40,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932965878] [2021-10-21 19:42:40,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932965878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:40,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807232881] [2021-10-21 19:42:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:40,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:42:40,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:40,373 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:42:40,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-21 19:42:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:40,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-21 19:42:40,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:40,637 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 [2021-10-21 19:42:40,729 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 [2021-10-21 19:42:40,737 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 [2021-10-21 19:42:40,929 INFO L354 Elim1Store]: treesize reduction 140, result has 13.0 percent of original size [2021-10-21 19:42:40,930 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 [2021-10-21 19:42:40,973 INFO L354 Elim1Store]: treesize reduction 140, result has 13.0 percent of original size [2021-10-21 19:42:40,973 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 [2021-10-21 19:42:41,061 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 [2021-10-21 19:42:41,064 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 [2021-10-21 19:42:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:41,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807232881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:41,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:42:41,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2021-10-21 19:42:41,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691509341] [2021-10-21 19:42:41,088 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:42:41,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:41,089 INFO L82 PathProgramCache]: Analyzing trace with hash 102329555, now seen corresponding path program 2 times [2021-10-21 19:42:41,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:41,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829811940] [2021-10-21 19:42:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:41,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:41,097 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:41,102 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:41,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:42:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:42:41,374 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) [2021-10-21 19:42:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:41,933 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-10-21 19:42:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:42:41,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 39 transitions. [2021-10-21 19:42:41,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-21 19:42:41,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 35 states and 38 transitions. [2021-10-21 19:42:41,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-21 19:42:41,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-21 19:42:41,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 38 transitions. [2021-10-21 19:42:41,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:42:41,936 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-21 19:42:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 38 transitions. [2021-10-21 19:42:41,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-21 19:42:41,938 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) [2021-10-21 19:42:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-21 19:42:41,938 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-21 19:42:41,938 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-21 19:42:41,938 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:42:41,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 38 transitions. [2021-10-21 19:42:41,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-21 19:42:41,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:41,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:41,940 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] [2021-10-21 19:42:41,940 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:42:41,940 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$(~#pp~0.base, ~#pp~0.offset + 4 * g_~i~2, 4); 1824#L39 [2021-10-21 19:42:41,940 INFO L793 eck$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 [2021-10-21 19:42:41,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:41,941 INFO L82 PathProgramCache]: Analyzing trace with hash -147882112, now seen corresponding path program 2 times [2021-10-21 19:42:41,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:41,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878286681] [2021-10-21 19:42:41,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:41,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:42,017 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:42,143 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:42,144 INFO L82 PathProgramCache]: Analyzing trace with hash 115236, now seen corresponding path program 5 times [2021-10-21 19:42:42,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:42,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710756871] [2021-10-21 19:42:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:42,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:42,152 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:42,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:42,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:42,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1080532549, now seen corresponding path program 1 times [2021-10-21 19:42:42,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:42,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887137513] [2021-10-21 19:42:42,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:42,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:42:42,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:42,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887137513] [2021-10-21 19:42:42,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887137513] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:42,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714733672] [2021-10-21 19:42:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:42,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:42:42,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:42,243 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:42:42,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-21 19:42:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:42,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:42:42,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:42:42,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714733672] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:42,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:42:42,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-21 19:42:42,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869458503] [2021-10-21 19:42:42,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:42,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:42:42,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:42:42,736 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) [2021-10-21 19:42:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:42,797 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-21 19:42:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:42:42,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 43 transitions. [2021-10-21 19:42:42,798 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:42:42,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-10-21 19:42:42,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:42:42,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:42:42,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:42:42,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:42:42,798 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:42:42,798 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:42:42,799 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:42:42,799 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 19:42:42,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:42:42,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:42:42,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:42:42,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:42:42 BoogieIcfgContainer [2021-10-21 19:42:42,831 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:42:42,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:42:42,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:42:42,832 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:42:42,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:38" (3/4) ... [2021-10-21 19:42:42,836 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:42:42,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:42:42,838 INFO L168 Benchmark]: Toolchain (without parser) took 65740.93 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 53.9 MB in the beginning and 65.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:42,842 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 96.5 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:42:42,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.60 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 70.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:42,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.20 ms. Allocated memory is still 96.5 MB. Free memory was 70.1 MB in the beginning and 68.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:42,859 INFO L168 Benchmark]: Boogie Preprocessor took 63.40 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 66.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:42:42,860 INFO L168 Benchmark]: RCFGBuilder took 564.83 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 51.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:42,861 INFO L168 Benchmark]: BuchiAutomizer took 64749.51 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 51.4 MB in the beginning and 65.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:42,861 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 142.6 MB. Free memory is still 65.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:42:42,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 96.5 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.60 ms. Allocated memory is still 96.5 MB. Free memory was 53.7 MB in the beginning and 70.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.20 ms. Allocated memory is still 96.5 MB. Free memory was 70.1 MB in the beginning and 68.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.40 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 66.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 564.83 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 51.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 64749.51 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 51.4 MB in the beginning and 65.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.11 ms. Allocated memory is still 142.6 MB. Free memory is still 65.2 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 64.6s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 60.8s. Construction of modules took 1.2s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 6. Automata minimization 45.7ms 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, 1243.3ms 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: 32ms 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! [2021-10-21 19:42:42,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:43,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-10-21 19:42:43,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-21 19:42:43,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-10-21 19:42:43,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-10-21 19:42:43,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-10-21 19:42:44,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-21 19:42:44,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae655f34-870b-4438-ab26-0d4372f071ae/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...