./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD --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 50151fd5b174ebc91ead294b24e8609853135da34cf3135980023271fd7c21f6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:15:08,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:15:08,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:15:08,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:15:08,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:15:08,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:15:08,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:15:08,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:15:08,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:15:08,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:15:08,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:15:08,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:15:08,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:15:08,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:15:08,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:15:08,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:15:08,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:15:08,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:15:08,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:15:08,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:15:08,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:15:08,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:15:08,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:15:08,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:15:08,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:15:08,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:15:08,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:15:08,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:15:08,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:15:08,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:15:08,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:15:08,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:15:08,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:15:08,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:15:08,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:15:08,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:15:08,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:15:08,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:15:08,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:15:08,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:15:08,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:15:08,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:15:08,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:15:08,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:15:08,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:15:08,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:15:08,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:15:08,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:15:08,610 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:15:08,610 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:15:08,610 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:15:08,610 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:15:08,611 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:15:08,611 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:15:08,611 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:15:08,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:15:08,612 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:15:08,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:15:08,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:15:08,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:15:08,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:15:08,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:15:08,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:15:08,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:15:08,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:15:08,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:15:08,615 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:15:08,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:15:08,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:15:08,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:15:08,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:15:08,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:15:08,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:15:08,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:15:08,619 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:15:08,619 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_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50151fd5b174ebc91ead294b24e8609853135da34cf3135980023271fd7c21f6 [2021-10-28 23:15:09,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:15:09,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:15:09,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:15:09,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:15:09,114 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:15:09,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2021-10-28 23:15:09,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/data/0fffac676/d0f8bca861144cd0be500090cb727500/FLAG187ba9e14 [2021-10-28 23:15:10,023 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:15:10,028 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2021-10-28 23:15:10,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/data/0fffac676/d0f8bca861144cd0be500090cb727500/FLAG187ba9e14 [2021-10-28 23:15:10,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/data/0fffac676/d0f8bca861144cd0be500090cb727500 [2021-10-28 23:15:10,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:15:10,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:15:10,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:15:10,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:15:10,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:15:10,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:15:10" (1/1) ... [2021-10-28 23:15:10,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f19d6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:10, skipping insertion in model container [2021-10-28 23:15:10,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:15:10" (1/1) ... [2021-10-28 23:15:10,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:15:10,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:15:10,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:15:10,986 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:15:11,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:15:11,154 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:15:11,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11 WrapperNode [2021-10-28 23:15:11,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:15:11,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:15:11,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:15:11,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:15:11,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:15:11,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:15:11,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:15:11,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:15:11,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:15:11,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:15:11,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:15:11,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:15:11,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (1/1) ... [2021-10-28 23:15:11,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:11,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:11,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:11,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:15:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:15:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:15:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:15:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:15:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:15:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:15:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:15:11,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:15:11,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:15:11,800 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-28 23:15:11,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:15:11 BoogieIcfgContainer [2021-10-28 23:15:11,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:15:11,804 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:15:11,804 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:15:11,808 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:15:11,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:15:11,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:15:10" (1/3) ... [2021-10-28 23:15:11,812 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15a4182b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:15:11, skipping insertion in model container [2021-10-28 23:15:11,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:15:11,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:11" (2/3) ... [2021-10-28 23:15:11,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15a4182b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:15:11, skipping insertion in model container [2021-10-28 23:15:11,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:15:11,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:15:11" (3/3) ... [2021-10-28 23:15:11,815 INFO L389 chiAutomizerObserver]: Analyzing ICFG memleaks_test17_1-2.i [2021-10-28 23:15:11,902 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:15:11,902 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:15:11,903 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:15:11,903 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:15:11,903 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:15:11,903 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:15:11,904 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:15:11,904 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:15:11,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:11,949 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-28 23:15:11,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:11,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:11,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:11,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:15:11,959 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:15:11,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:11,966 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-28 23:15:11,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:11,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:11,968 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:11,968 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:15:11,974 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 12#L-1true havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 17#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 10#L529true entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 6#L787true assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 19#L788-3true [2021-10-28 23:15:11,975 INFO L793 eck$LassoCheckResult]: Loop: 19#L788-3true assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 3#L788-2true entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 19#L788-3true [2021-10-28 23:15:11,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 28695751, now seen corresponding path program 1 times [2021-10-28 23:15:12,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:12,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014224634] [2021-10-28 23:15:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:12,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:12,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:12,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014224634] [2021-10-28 23:15:12,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014224634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:15:12,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:15:12,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:15:12,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105922613] [2021-10-28 23:15:12,437 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:12,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:12,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1603, now seen corresponding path program 1 times [2021-10-28 23:15:12,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:12,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616252978] [2021-10-28 23:15:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:12,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:12,466 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:12,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:12,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:12,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:15:12,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:15:12,704 INFO L87 Difference]: Start difference. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:12,805 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-10-28 23:15:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:15:12,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 53 transitions. [2021-10-28 23:15:12,818 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 19 [2021-10-28 23:15:12,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 33 states and 41 transitions. [2021-10-28 23:15:12,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-28 23:15:12,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-28 23:15:12,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2021-10-28 23:15:12,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:12,831 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-28 23:15:12,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2021-10-28 23:15:12,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 21. [2021-10-28 23:15:12,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-10-28 23:15:12,872 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-28 23:15:12,872 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-28 23:15:12,872 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:15:12,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-10-28 23:15:12,875 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-28 23:15:12,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:12,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:12,876 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:12,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:15:12,876 INFO L791 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 84#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 94#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 90#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 85#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 82#L788-3 [2021-10-28 23:15:12,877 INFO L793 eck$LassoCheckResult]: Loop: 82#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 81#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 82#L788-3 [2021-10-28 23:15:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:12,880 INFO L85 PathProgramCache]: Analyzing trace with hash 28693829, now seen corresponding path program 1 times [2021-10-28 23:15:12,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:12,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829124873] [2021-10-28 23:15:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:12,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:12,923 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:12,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:12,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1603, now seen corresponding path program 2 times [2021-10-28 23:15:12,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:12,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568755645] [2021-10-28 23:15:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:12,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:13,000 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:13,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966535, now seen corresponding path program 1 times [2021-10-28 23:15:13,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:13,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393945899] [2021-10-28 23:15:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:13,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:13,073 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:13,120 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:13,747 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:15:13,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:15:13,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:15:13,749 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:15:13,749 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:15:13,749 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:13,749 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:15:13,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:15:13,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_1-2.i_Iteration2_Lasso [2021-10-28 23:15:13,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:15:13,760 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:15:13,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:13,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:13,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:13,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:15:14,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:15:14,711 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:15:14,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:14,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:14,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:14,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:14,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:14,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:15:14,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:15:14,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:14,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:14,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:14,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:15:14,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:15:14,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:14,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:14,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:14,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:14,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:14,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:15:14,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:14,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:14,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:15:14,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:14,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:14,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:14,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:15:14,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:15:14,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:14,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:14,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:14,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:14,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:15:14,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:14,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:14,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:15:14,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:14,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:14,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:14,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:15:14,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:15:14,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:14,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:14,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:14,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:14,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:14,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:15:14,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:15,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:15:15,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:15:15,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:15,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:15:15,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:15,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:15:15,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:15:15,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:15:15,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:15,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,137 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:15:15,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:15,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:15:15,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:15:15,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:15,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,240 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:15:15,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,258 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 23:15:15,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,272 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-28 23:15:15,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:15:15,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:15,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,332 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:15:15,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:15:15,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:15,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:15:15,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:15:15,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:15,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,386 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:15:15,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:15,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:15:15,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:15:15,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:15:15,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:15:15,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:15:15,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:15:15,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:15:15,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:15:15,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:15:15,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:15:15,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:15:15,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:15:15,620 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-28 23:15:15,620 INFO L444 ModelExtractionUtils]: 21 out of 37 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-28 23:15:15,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:15,624 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:15,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:15:15,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:15:15,708 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:15:15,709 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:15:15,709 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~len~0, ULTIMATE.start_entry_point_~i~2) = 1*ULTIMATE.start_entry_point_~len~0 - 1*ULTIMATE.start_entry_point_~i~2 Supporting invariants [] [2021-10-28 23:15:15,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:15,792 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 23:15:15,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:15,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:15:15,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:15,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:15:15,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:15,906 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:15:15,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:15,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 9. 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) Result 37 states and 50 transitions. Complement of second has 6 states. [2021-10-28 23:15:15,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:15:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2021-10-28 23:15:15,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:15:15,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:15:15,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 23:15:15,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:15:15,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 23:15:15,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:15:15,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2021-10-28 23:15:15,986 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:15,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 22 states and 28 transitions. [2021-10-28 23:15:15,987 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 23:15:15,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:15,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-10-28 23:15:15,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:15,988 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-10-28 23:15:15,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-10-28 23:15:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-28 23:15:15,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-10-28 23:15:15,994 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-10-28 23:15:15,995 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-10-28 23:15:15,995 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:15:15,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2021-10-28 23:15:15,997 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:15,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:15,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:15,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:15,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:15,999 INFO L791 eck$LassoCheckResult]: Stem: 213#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 214#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 225#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 224#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 215#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 216#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 230#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 226#L764-3 [2021-10-28 23:15:15,999 INFO L793 eck$LassoCheckResult]: Loop: 226#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 232#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 231#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 221#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 223#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 226#L764-3 [2021-10-28 23:15:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966477, now seen corresponding path program 1 times [2021-10-28 23:15:16,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:16,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743595032] [2021-10-28 23:15:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:16,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:16,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:16,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743595032] [2021-10-28 23:15:16,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743595032] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:15:16,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:15:16,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:15:16,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114709098] [2021-10-28 23:15:16,097 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 1 times [2021-10-28 23:15:16,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:16,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382019834] [2021-10-28 23:15:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:16,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:16,129 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:16,154 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:16,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:15:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:15:16,493 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:16,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:16,522 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-10-28 23:15:16,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:15:16,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-10-28 23:15:16,524 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:16,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 28 transitions. [2021-10-28 23:15:16,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:16,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:16,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-10-28 23:15:16,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:16,526 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-28 23:15:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-10-28 23:15:16,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-28 23:15:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-28 23:15:16,530 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-28 23:15:16,530 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-28 23:15:16,530 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:15:16,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-10-28 23:15:16,531 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:16,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:16,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:16,532 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:16,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:16,532 INFO L791 eck$LassoCheckResult]: Stem: 265#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 266#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 277#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 276#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 267#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 268#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 263#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 264#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 282#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 278#L764-3 [2021-10-28 23:15:16,532 INFO L793 eck$LassoCheckResult]: Loop: 278#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 283#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 284#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 273#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 275#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 278#L764-3 [2021-10-28 23:15:16,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:16,533 INFO L85 PathProgramCache]: Analyzing trace with hash -593946865, now seen corresponding path program 1 times [2021-10-28 23:15:16,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:16,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405561614] [2021-10-28 23:15:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:16,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:16,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:16,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405561614] [2021-10-28 23:15:16,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405561614] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:16,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007840381] [2021-10-28 23:15:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:16,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:16,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:16,588 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:16,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:15:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:16,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:15:16,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:16,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007840381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:16,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:16,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 23:15:16,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037150468] [2021-10-28 23:15:16,766 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:16,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:16,766 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 2 times [2021-10-28 23:15:16,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:16,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509120282] [2021-10-28 23:15:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:16,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:16,779 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:16,792 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:17,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:15:17,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:17,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:15:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:15:17,143 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:17,188 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-28 23:15:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:15:17,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2021-10-28 23:15:17,190 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:17,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 30 transitions. [2021-10-28 23:15:17,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:17,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:17,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2021-10-28 23:15:17,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:17,192 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-10-28 23:15:17,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2021-10-28 23:15:17,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-10-28 23:15:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-10-28 23:15:17,195 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-28 23:15:17,196 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-28 23:15:17,196 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:15:17,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-10-28 23:15:17,197 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:17,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:17,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:17,198 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:17,198 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:17,199 INFO L791 eck$LassoCheckResult]: Stem: 348#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 349#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 358#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 354#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 346#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 347#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 363#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 364#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 344#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 345#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 365#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 359#L764-3 [2021-10-28 23:15:17,199 INFO L793 eck$LassoCheckResult]: Loop: 359#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 366#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 367#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 355#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 357#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 359#L764-3 [2021-10-28 23:15:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash 447769425, now seen corresponding path program 2 times [2021-10-28 23:15:17,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:17,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279244054] [2021-10-28 23:15:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:17,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:17,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:17,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279244054] [2021-10-28 23:15:17,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279244054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:17,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805982492] [2021-10-28 23:15:17,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:15:17,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:17,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:17,270 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:17,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:15:17,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:15:17,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:17,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:15:17,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:17,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805982492] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:17,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:17,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-28 23:15:17,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678226743] [2021-10-28 23:15:17,487 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:17,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:17,487 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 3 times [2021-10-28 23:15:17,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:17,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028199526] [2021-10-28 23:15:17,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:17,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:17,499 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:17,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:17,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:15:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:15:17,890 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 9 Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:17,955 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2021-10-28 23:15:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:15:17,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2021-10-28 23:15:17,957 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:17,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 32 transitions. [2021-10-28 23:15:17,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:17,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:17,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2021-10-28 23:15:17,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:17,959 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-28 23:15:17,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2021-10-28 23:15:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-28 23:15:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-10-28 23:15:17,962 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-10-28 23:15:17,962 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-10-28 23:15:17,962 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:15:17,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2021-10-28 23:15:17,963 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:17,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:17,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:17,964 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:17,964 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:17,964 INFO L791 eck$LassoCheckResult]: Stem: 439#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 440#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 451#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 447#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 441#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 442#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 437#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 438#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 462#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 456#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 457#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 461#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 458#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 452#L764-3 [2021-10-28 23:15:17,964 INFO L793 eck$LassoCheckResult]: Loop: 452#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 459#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 460#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 448#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 450#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 452#L764-3 [2021-10-28 23:15:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:17,965 INFO L85 PathProgramCache]: Analyzing trace with hash 809744147, now seen corresponding path program 3 times [2021-10-28 23:15:17,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:17,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109578407] [2021-10-28 23:15:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:17,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:18,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:18,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109578407] [2021-10-28 23:15:18,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109578407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:18,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773019090] [2021-10-28 23:15:18,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:15:18,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:18,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:18,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:18,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 23:15:18,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 23:15:18,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:18,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:15:18,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:18,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773019090] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:18,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:18,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-10-28 23:15:18,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428014502] [2021-10-28 23:15:18,339 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:18,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 4 times [2021-10-28 23:15:18,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:18,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396799163] [2021-10-28 23:15:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:18,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:18,363 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:18,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:18,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:18,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:15:18,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:15:18,708 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. cyclomatic complexity: 9 Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:18,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:18,761 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-10-28 23:15:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:15:18,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-10-28 23:15:18,763 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:18,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 34 transitions. [2021-10-28 23:15:18,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:18,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:18,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2021-10-28 23:15:18,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:18,765 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-10-28 23:15:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2021-10-28 23:15:18,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-28 23:15:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-10-28 23:15:18,768 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-28 23:15:18,769 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-28 23:15:18,769 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:15:18,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2021-10-28 23:15:18,769 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:18,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:18,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:18,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:18,771 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:18,771 INFO L791 eck$LassoCheckResult]: Stem: 544#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 545#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 556#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 552#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 546#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 547#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 561#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 562#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 542#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 543#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 569#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 568#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 567#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 566#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 563#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 557#L764-3 [2021-10-28 23:15:18,771 INFO L793 eck$LassoCheckResult]: Loop: 557#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 564#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 565#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 553#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 555#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 557#L764-3 [2021-10-28 23:15:18,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:18,774 INFO L85 PathProgramCache]: Analyzing trace with hash 775101013, now seen corresponding path program 4 times [2021-10-28 23:15:18,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:18,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877923509] [2021-10-28 23:15:18,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:18,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:18,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:18,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877923509] [2021-10-28 23:15:18,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877923509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:18,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652190321] [2021-10-28 23:15:18,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:15:18,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:18,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:18,917 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:18,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:15:19,026 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:15:19,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:19,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:15:19,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:19,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652190321] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:19,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:19,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-28 23:15:19,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325792376] [2021-10-28 23:15:19,185 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:19,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 5 times [2021-10-28 23:15:19,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:19,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592074606] [2021-10-28 23:15:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:19,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:19,198 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:19,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:19,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:19,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:15:19,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:15:19,503 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 9 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:19,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:19,569 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-10-28 23:15:19,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:15:19,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2021-10-28 23:15:19,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:19,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2021-10-28 23:15:19,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:19,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:19,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2021-10-28 23:15:19,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:19,572 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 23:15:19,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2021-10-28 23:15:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2021-10-28 23:15:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2021-10-28 23:15:19,576 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2021-10-28 23:15:19,576 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2021-10-28 23:15:19,577 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:15:19,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 35 transitions. [2021-10-28 23:15:19,577 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:19,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:19,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:19,579 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:19,579 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:19,579 INFO L791 eck$LassoCheckResult]: Stem: 661#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 662#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 673#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 672#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 663#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 664#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 678#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 679#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 659#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 660#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 688#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 687#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 686#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 685#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 684#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 683#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 680#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 674#L764-3 [2021-10-28 23:15:19,580 INFO L793 eck$LassoCheckResult]: Loop: 674#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 681#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 682#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 669#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 671#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 674#L764-3 [2021-10-28 23:15:19,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:19,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1842787607, now seen corresponding path program 5 times [2021-10-28 23:15:19,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:19,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303206467] [2021-10-28 23:15:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:19,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:19,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:19,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303206467] [2021-10-28 23:15:19,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303206467] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:19,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486044349] [2021-10-28 23:15:19,673 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:15:19,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:19,676 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:19,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:15:19,859 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-28 23:15:19,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:19,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:15:19,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:20,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486044349] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:20,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:20,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-10-28 23:15:20,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995609087] [2021-10-28 23:15:20,055 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 6 times [2021-10-28 23:15:20,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:20,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789456290] [2021-10-28 23:15:20,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:20,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:20,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:20,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:20,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:15:20,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:15:20,402 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. cyclomatic complexity: 9 Second operand has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:20,464 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-10-28 23:15:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:15:20,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-10-28 23:15:20,467 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:20,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 38 transitions. [2021-10-28 23:15:20,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:20,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:20,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-10-28 23:15:20,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:20,468 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-10-28 23:15:20,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-10-28 23:15:20,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-10-28 23:15:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.15625) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-10-28 23:15:20,475 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-28 23:15:20,476 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-28 23:15:20,476 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:15:20,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2021-10-28 23:15:20,477 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:20,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:20,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:20,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:20,481 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:20,481 INFO L791 eck$LassoCheckResult]: Stem: 790#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 791#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 802#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 801#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 792#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 793#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 807#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 808#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 788#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 789#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 819#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 818#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 817#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 816#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 815#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 814#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 813#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 812#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 809#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 803#L764-3 [2021-10-28 23:15:20,482 INFO L793 eck$LassoCheckResult]: Loop: 803#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 810#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 811#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 798#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 800#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 803#L764-3 [2021-10-28 23:15:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1392420697, now seen corresponding path program 6 times [2021-10-28 23:15:20,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:20,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228911304] [2021-10-28 23:15:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:20,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:20,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:20,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228911304] [2021-10-28 23:15:20,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228911304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:20,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445510203] [2021-10-28 23:15:20,640 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:15:20,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:20,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:20,643 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:20,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 23:15:20,804 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-28 23:15:20,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:20,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:15:20,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:21,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445510203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:21,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:21,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-10-28 23:15:21,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360445740] [2021-10-28 23:15:21,031 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:21,035 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 7 times [2021-10-28 23:15:21,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:21,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399681937] [2021-10-28 23:15:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:21,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:21,044 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:21,057 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:21,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:15:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:15:21,390 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. cyclomatic complexity: 9 Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:21,469 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-10-28 23:15:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:15:21,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2021-10-28 23:15:21,471 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:21,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 40 transitions. [2021-10-28 23:15:21,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:21,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:21,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 40 transitions. [2021-10-28 23:15:21,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:21,473 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-10-28 23:15:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 40 transitions. [2021-10-28 23:15:21,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2021-10-28 23:15:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 33 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:21,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2021-10-28 23:15:21,476 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 39 transitions. [2021-10-28 23:15:21,476 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 39 transitions. [2021-10-28 23:15:21,476 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:15:21,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 39 transitions. [2021-10-28 23:15:21,477 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:21,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:21,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:21,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:21,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:21,478 INFO L791 eck$LassoCheckResult]: Stem: 933#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 934#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 943#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 939#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 931#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 932#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 948#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 949#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 929#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 930#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 962#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 961#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 960#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 959#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 958#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 957#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 956#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 955#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 954#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 953#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 950#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 944#L764-3 [2021-10-28 23:15:21,478 INFO L793 eck$LassoCheckResult]: Loop: 944#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 951#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 952#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 940#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 942#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 944#L764-3 [2021-10-28 23:15:21,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:21,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1913450213, now seen corresponding path program 7 times [2021-10-28 23:15:21,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:21,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57652516] [2021-10-28 23:15:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:21,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:21,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:21,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57652516] [2021-10-28 23:15:21,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57652516] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:21,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032332168] [2021-10-28 23:15:21,607 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:15:21,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:21,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:21,609 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:21,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 23:15:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:21,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:15:21,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:21,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032332168] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:21,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:21,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-28 23:15:21,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398902029] [2021-10-28 23:15:21,996 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 8 times [2021-10-28 23:15:21,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:21,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491897803] [2021-10-28 23:15:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:21,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:22,006 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:22,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:22,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:22,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:15:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=199, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:15:22,296 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. cyclomatic complexity: 9 Second operand has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 19 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:22,373 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2021-10-28 23:15:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:15:22,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 42 transitions. [2021-10-28 23:15:22,375 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:22,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 42 transitions. [2021-10-28 23:15:22,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:22,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:22,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 42 transitions. [2021-10-28 23:15:22,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:22,379 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-10-28 23:15:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 42 transitions. [2021-10-28 23:15:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-10-28 23:15:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-10-28 23:15:22,395 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-10-28 23:15:22,395 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-10-28 23:15:22,395 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:15:22,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 41 transitions. [2021-10-28 23:15:22,396 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:22,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:22,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:22,397 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:22,397 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:22,397 INFO L791 eck$LassoCheckResult]: Stem: 1084#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1085#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1096#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1092#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 1086#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1087#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1101#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1102#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1082#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1083#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1117#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1116#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1115#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1114#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1113#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1112#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1111#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1110#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1109#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1108#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1107#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1106#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1103#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1097#L764-3 [2021-10-28 23:15:22,397 INFO L793 eck$LassoCheckResult]: Loop: 1097#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1104#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1105#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1093#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1095#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1097#L764-3 [2021-10-28 23:15:22,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:22,398 INFO L85 PathProgramCache]: Analyzing trace with hash -579595683, now seen corresponding path program 8 times [2021-10-28 23:15:22,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:22,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085313783] [2021-10-28 23:15:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:22,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:22,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:22,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085313783] [2021-10-28 23:15:22,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085313783] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:22,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202419706] [2021-10-28 23:15:22,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:15:22,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:22,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:22,563 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:22,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 23:15:22,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:15:22,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:22,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:15:22,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:23,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202419706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:23,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:23,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-10-28 23:15:23,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814227623] [2021-10-28 23:15:23,127 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 9 times [2021-10-28 23:15:23,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:23,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004463703] [2021-10-28 23:15:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:23,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:23,139 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:23,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:23,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:15:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=246, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:15:23,455 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. cyclomatic complexity: 9 Second operand has 21 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 21 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:23,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:23,534 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2021-10-28 23:15:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:15:23,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 44 transitions. [2021-10-28 23:15:23,538 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:23,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 44 transitions. [2021-10-28 23:15:23,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:23,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:23,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 44 transitions. [2021-10-28 23:15:23,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:23,540 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 44 transitions. [2021-10-28 23:15:23,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 44 transitions. [2021-10-28 23:15:23,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-10-28 23:15:23,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.131578947368421) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-10-28 23:15:23,543 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-10-28 23:15:23,543 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-10-28 23:15:23,543 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:15:23,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 43 transitions. [2021-10-28 23:15:23,547 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:23,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:23,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:23,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:23,550 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:23,551 INFO L791 eck$LassoCheckResult]: Stem: 1249#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1250#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1261#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1260#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 1251#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1252#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1266#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1267#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1247#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1248#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1284#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1283#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1282#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1281#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1280#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1279#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1278#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1277#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1276#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1275#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1274#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1273#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1272#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1271#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1268#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1262#L764-3 [2021-10-28 23:15:23,551 INFO L793 eck$LassoCheckResult]: Loop: 1262#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1269#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1270#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1257#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1259#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1262#L764-3 [2021-10-28 23:15:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1354353439, now seen corresponding path program 9 times [2021-10-28 23:15:23,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:23,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371730963] [2021-10-28 23:15:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:23,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:23,725 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:23,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:23,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371730963] [2021-10-28 23:15:23,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371730963] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:23,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776928782] [2021-10-28 23:15:23,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:15:23,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:15:23,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:23,732 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:15:23,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 23:15:24,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-28 23:15:24,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:15:24,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:15:24,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:15:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:25,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776928782] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:15:25,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:15:25,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-10-28 23:15:25,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693756506] [2021-10-28 23:15:25,098 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:15:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 10 times [2021-10-28 23:15:25,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:25,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557646943] [2021-10-28 23:15:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:25,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,115 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:25,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:25,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:15:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=298, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:15:25,456 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. cyclomatic complexity: 9 Second operand has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 23 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:25,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:25,569 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-10-28 23:15:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:15:25,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 46 transitions. [2021-10-28 23:15:25,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:25,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 46 transitions. [2021-10-28 23:15:25,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:15:25,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:15:25,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 46 transitions. [2021-10-28 23:15:25,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:25,573 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 46 transitions. [2021-10-28 23:15:25,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 46 transitions. [2021-10-28 23:15:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-10-28 23:15:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.125) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2021-10-28 23:15:25,580 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-10-28 23:15:25,580 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-10-28 23:15:25,581 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 23:15:25,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 45 transitions. [2021-10-28 23:15:25,581 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:15:25,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:25,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:25,586 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:25,586 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:15:25,590 INFO L791 eck$LassoCheckResult]: Stem: 1428#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1429#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1440#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1439#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 1430#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1431#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1445#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1446#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1426#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1427#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1465#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1464#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1463#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1462#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1461#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1460#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1459#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1458#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1457#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1456#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1455#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1454#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1453#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1452#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1451#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1450#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1447#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1441#L764-3 [2021-10-28 23:15:25,591 INFO L793 eck$LassoCheckResult]: Loop: 1441#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1448#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1449#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1436#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1438#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1441#L764-3 [2021-10-28 23:15:25,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash 158620513, now seen corresponding path program 10 times [2021-10-28 23:15:25,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:25,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228272231] [2021-10-28 23:15:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:25,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,623 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash 61172007, now seen corresponding path program 11 times [2021-10-28 23:15:25,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:25,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112653491] [2021-10-28 23:15:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:25,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,677 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:25,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1350358585, now seen corresponding path program 1 times [2021-10-28 23:15:25,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:25,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119320380] [2021-10-28 23:15:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:25,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,728 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:25,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:00,731 WARN L207 SmtUtils]: Spent 2.58 m on a formula simplification. DAG size of input: 368 DAG size of output: 302 [2021-10-28 23:18:10,250 WARN L207 SmtUtils]: Spent 5.59 s on a formula simplification that was a NOOP. DAG size: 154 [2021-10-28 23:18:10,262 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:18:10,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:18:10,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:18:10,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:18:10,262 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:18:10,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:10,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:18:10,263 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:18:10,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_1-2.i_Iteration13_Lasso [2021-10-28 23:18:10,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:18:10,263 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:18:10,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:10,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:11,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:11,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:11,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:11,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:11,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:11,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:18:12,032 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:18:12,032 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:18:12,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,036 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:18:12,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,078 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:18:12,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,126 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:18:12,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:12,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:12,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,167 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:18:12,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:12,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:12,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,225 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:18:12,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 23:18:12,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,268 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:18:12,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,318 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:18:12,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,361 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:18:12,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 23:18:12,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,402 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:18:12,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:12,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:12,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,449 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:18:12,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,491 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:18:12,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,529 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:18:12,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,578 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:18:12,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:12,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:12,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,618 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:18:12,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:12,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:12,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 23:18:12,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,664 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:18:12,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 23:18:12,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,703 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:18:12,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:18:12,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:18:12,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:18:12,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:18:12,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,745 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:18:12,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:18:12,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:18:12,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:18:12,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:18:12,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:18:12,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:18:12,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:18:12,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:18:12,840 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-28 23:18:12,840 INFO L444 ModelExtractionUtils]: 41 out of 52 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-28 23:18:12,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:18:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:18:12,848 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:18:12,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:18:12,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:18:12,886 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:18:12,886 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:18:12,887 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_alloc_17_~i~0, ULTIMATE.start_alloc_17_~len) = -1*ULTIMATE.start_alloc_17_~i~0 + 1*ULTIMATE.start_alloc_17_~len Supporting invariants [] [2021-10-28 23:18:12,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:12,963 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 23:18:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:13,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:18:13,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:13,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:18:13,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:18:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:18:13,198 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:18:13,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 45 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,226 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 45 transitions. cyclomatic complexity: 9. 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) Result 59 states and 71 transitions. Complement of second has 6 states. [2021-10-28 23:18:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:18:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2021-10-28 23:18:13,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 27 letters. Loop has 5 letters. [2021-10-28 23:18:13,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:13,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 32 letters. Loop has 5 letters. [2021-10-28 23:18:13,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:13,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 27 letters. Loop has 10 letters. [2021-10-28 23:18:13,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:18:13,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 71 transitions. [2021-10-28 23:18:13,231 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-10-28 23:18:13,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 47 states and 55 transitions. [2021-10-28 23:18:13,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 23:18:13,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-28 23:18:13,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2021-10-28 23:18:13,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:13,234 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2021-10-28 23:18:13,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2021-10-28 23:18:13,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2021-10-28 23:18:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 43 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-10-28 23:18:13,238 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-10-28 23:18:13,238 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-10-28 23:18:13,238 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 23:18:13,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 52 transitions. [2021-10-28 23:18:13,239 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:18:13,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:13,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:13,240 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:13,240 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:18:13,240 INFO L791 eck$LassoCheckResult]: Stem: 1674#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1675#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1687#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1682#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 1676#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1677#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1672#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1673#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1692#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1715#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1714#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1713#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1712#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1711#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1710#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1709#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1708#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1707#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1706#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1705#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1704#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1703#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1702#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1701#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1700#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1699#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1693#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1694#L764-3 assume !(alloc_17_~i~0 < alloc_17_~len); 1681#L764-4 alloc_17_#res := 0; 1678#L775 entry_point_#t~ret46 := alloc_17_#res;havoc entry_point_#t~ret46;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 1679#L779-3 [2021-10-28 23:18:13,241 INFO L793 eck$LassoCheckResult]: Loop: 1679#L779-3 assume !!(free_17_~i~1 < free_17_~len);call free_17_#t~mem43.base, free_17_#t~mem43.offset := read~$Pointer$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 1680#L779-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 1679#L779-3 [2021-10-28 23:18:13,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,241 INFO L85 PathProgramCache]: Analyzing trace with hash 999709617, now seen corresponding path program 1 times [2021-10-28 23:18:13,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156721961] [2021-10-28 23:18:13,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-28 23:18:13,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:13,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156721961] [2021-10-28 23:18:13,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156721961] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:13,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:13,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:18:13,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659163778] [2021-10-28 23:18:13,314 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:18:13,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash 3459, now seen corresponding path program 1 times [2021-10-28 23:18:13,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949875149] [2021-10-28 23:18:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,321 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:13,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:18:13,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:18:13,392 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:13,421 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2021-10-28 23:18:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:18:13,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 68 transitions. [2021-10-28 23:18:13,423 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-28 23:18:13,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 68 transitions. [2021-10-28 23:18:13,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 23:18:13,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 23:18:13,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 68 transitions. [2021-10-28 23:18:13,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:13,425 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 68 transitions. [2021-10-28 23:18:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 68 transitions. [2021-10-28 23:18:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2021-10-28 23:18:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2021-10-28 23:18:13,429 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 51 transitions. [2021-10-28 23:18:13,429 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 51 transitions. [2021-10-28 23:18:13,429 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 23:18:13,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 51 transitions. [2021-10-28 23:18:13,430 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:18:13,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:13,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:13,431 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:13,431 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:18:13,432 INFO L791 eck$LassoCheckResult]: Stem: 1783#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1784#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1796#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1791#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 1785#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1786#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1801#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1802#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1781#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1782#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1824#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1823#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1822#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1821#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1820#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1819#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1818#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1817#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1816#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1815#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1814#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1813#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1812#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1811#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1810#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1809#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1803#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1804#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1805#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1806#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1792#L766 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1793#L766-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1800#L771-3 [2021-10-28 23:18:13,432 INFO L793 eck$LassoCheckResult]: Loop: 1800#L771-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 1799#L771-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 1800#L771-3 [2021-10-28 23:18:13,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1350299059, now seen corresponding path program 1 times [2021-10-28 23:18:13,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88313707] [2021-10-28 23:18:13,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,475 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:13,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:18:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2947, now seen corresponding path program 1 times [2021-10-28 23:18:13,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793534283] [2021-10-28 23:18:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,532 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,536 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:13,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash -557270321, now seen corresponding path program 1 times [2021-10-28 23:18:13,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012058470] [2021-10-28 23:18:13,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-28 23:18:13,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:13,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012058470] [2021-10-28 23:18:13,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012058470] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:13,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:13,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:18:13,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688296721] [2021-10-28 23:18:13,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:18:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:18:13,718 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:13,762 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2021-10-28 23:18:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:18:13,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 69 transitions. [2021-10-28 23:18:13,764 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-28 23:18:13,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 60 states and 69 transitions. [2021-10-28 23:18:13,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-28 23:18:13,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-28 23:18:13,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 69 transitions. [2021-10-28 23:18:13,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:13,765 INFO L681 BuchiCegarLoop]: Abstraction has 60 states and 69 transitions. [2021-10-28 23:18:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 69 transitions. [2021-10-28 23:18:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2021-10-28 23:18:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.163265306122449) internal successors, (57), 48 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2021-10-28 23:18:13,770 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 57 transitions. [2021-10-28 23:18:13,770 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 57 transitions. [2021-10-28 23:18:13,770 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 23:18:13,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 57 transitions. [2021-10-28 23:18:13,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:18:13,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:13,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:13,772 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:13,772 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:18:13,773 INFO L791 eck$LassoCheckResult]: Stem: 1898#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1899#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1911#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1906#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 1900#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1901#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1896#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1897#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1916#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1944#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1943#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1942#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1941#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1940#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1939#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1938#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1936#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1935#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1933#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1932#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1931#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1930#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1929#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1928#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1927#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 1926#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1917#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1918#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1921#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1922#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1909#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1910#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1912#L764-3 assume !(alloc_17_~i~0 < alloc_17_~len); 1905#L764-4 alloc_17_#res := 0; 1902#L775 entry_point_#t~ret46 := alloc_17_#res;havoc entry_point_#t~ret46;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 1903#L779-3 [2021-10-28 23:18:13,773 INFO L793 eck$LassoCheckResult]: Loop: 1903#L779-3 assume !!(free_17_~i~1 < free_17_~len);call free_17_#t~mem43.base, free_17_#t~mem43.offset := read~$Pointer$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 1904#L779-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 1903#L779-3 [2021-10-28 23:18:13,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,773 INFO L85 PathProgramCache]: Analyzing trace with hash -93871603, now seen corresponding path program 1 times [2021-10-28 23:18:13,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321328748] [2021-10-28 23:18:13,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:18:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-28 23:18:13,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:18:13,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321328748] [2021-10-28 23:18:13,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321328748] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:18:13,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:18:13,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:18:13,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652223005] [2021-10-28 23:18:13,832 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:18:13,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash 3459, now seen corresponding path program 2 times [2021-10-28 23:18:13,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007490537] [2021-10-28 23:18:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,838 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:13,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:18:13,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:18:13,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:18:13,896 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:18:13,927 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2021-10-28 23:18:13,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:18:13,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 75 transitions. [2021-10-28 23:18:13,928 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-10-28 23:18:13,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 65 states and 73 transitions. [2021-10-28 23:18:13,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-28 23:18:13,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-28 23:18:13,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 73 transitions. [2021-10-28 23:18:13,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:18:13,931 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 73 transitions. [2021-10-28 23:18:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 73 transitions. [2021-10-28 23:18:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 49. [2021-10-28 23:18:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 48 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:18:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2021-10-28 23:18:13,934 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 56 transitions. [2021-10-28 23:18:13,934 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 56 transitions. [2021-10-28 23:18:13,935 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-28 23:18:13,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 56 transitions. [2021-10-28 23:18:13,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 23:18:13,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:18:13,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:18:13,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:18:13,937 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:18:13,937 INFO L791 eck$LassoCheckResult]: Stem: 2023#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 2024#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 2036#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 2031#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 2025#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 2026#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2021#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2022#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2041#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2066#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2065#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2064#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2063#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2062#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2061#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2060#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2059#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2058#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2057#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2056#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2055#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2054#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2053#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2052#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2051#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2050#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 2043#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 2044#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 2045#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 2046#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 2032#L766 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 2033#L766-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 2042#L771-3 assume !(alloc_17_~j~0 >= 0); 2038#L771-4 alloc_17_#res := 3; 2027#L775 entry_point_#t~ret46 := alloc_17_#res;havoc entry_point_#t~ret46;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 2028#L779-3 [2021-10-28 23:18:13,937 INFO L793 eck$LassoCheckResult]: Loop: 2028#L779-3 assume !!(free_17_~i~1 < free_17_~len);call free_17_#t~mem43.base, free_17_#t~mem43.offset := read~$Pointer$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 2029#L779-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 2028#L779-3 [2021-10-28 23:18:13,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,938 INFO L85 PathProgramCache]: Analyzing trace with hash -95512495, now seen corresponding path program 1 times [2021-10-28 23:18:13,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136296531] [2021-10-28 23:18:13,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,958 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:13,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,985 INFO L85 PathProgramCache]: Analyzing trace with hash 3459, now seen corresponding path program 3 times [2021-10-28 23:18:13,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008407606] [2021-10-28 23:18:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,990 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:13,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:18:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:18:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1593191981, now seen corresponding path program 1 times [2021-10-28 23:18:13,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:18:13,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126396363] [2021-10-28 23:18:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:18:13,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:18:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,019 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:18:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:18:14,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:20:52,992 WARN L207 SmtUtils]: Spent 2.65 m on a formula simplification. DAG size of input: 408 DAG size of output: 337 [2021-10-28 23:20:58,047 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:20:58,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:20:58,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:20:58,047 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:20:58,047 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:20:58,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:58,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:20:58,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:20:58,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_1-2.i_Iteration17_Lasso [2021-10-28 23:20:58,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:20:58,048 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:20:58,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:58,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:20:59,403 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:20:59,403 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:20:59,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,414 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:20:59,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,454 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:20:59,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,495 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:20:59,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,537 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:20:59,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,579 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:20:59,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:20:59,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:20:59,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:20:59,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,619 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:20:59,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,656 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:20:59,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:20:59,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:20:59,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:20:59,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,688 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:20:59,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:20:59,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:20:59,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:20:59,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 23:20:59,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,724 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:20:59,729 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 [2021-10-28 23:20:59,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:20:59,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:20:59,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:20:59,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,765 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:20:59,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:20:59,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:20:59,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,803 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:20:59,805 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 [2021-10-28 23:20:59,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:20:59,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:20:59,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:20:59,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:20:59,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:20:59,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:20:59,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:20:59,893 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 23:20:59,893 INFO L444 ModelExtractionUtils]: 10 out of 49 variables were initially zero. Simplification set additionally 36 variables to zero. [2021-10-28 23:20:59,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:20:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:20:59,895 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:20:59,897 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:20:59,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:20:59,928 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:20:59,928 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:20:59,928 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_free_17_~i~1, ULTIMATE.start_free_17_~len) = -1*ULTIMATE.start_free_17_~i~1 + 1*ULTIMATE.start_free_17_~len Supporting invariants [] [2021-10-28 23:20:59,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:20:59,985 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 23:21:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:00,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:21:00,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:00,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:00,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:21:00,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:00,210 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:21:00,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:00,227 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 59 transitions. Complement of second has 4 states. [2021-10-28 23:21:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:21:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2021-10-28 23:21:00,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 35 letters. Loop has 2 letters. [2021-10-28 23:21:00,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:21:00,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 37 letters. Loop has 2 letters. [2021-10-28 23:21:00,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:21:00,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 35 letters. Loop has 4 letters. [2021-10-28 23:21:00,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:21:00,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2021-10-28 23:21:00,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:21:00,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 42 transitions. [2021-10-28 23:21:00,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 23:21:00,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 23:21:00,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 42 transitions. [2021-10-28 23:21:00,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:21:00,236 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-28 23:21:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 42 transitions. [2021-10-28 23:21:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-28 23:21:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:21:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2021-10-28 23:21:00,240 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-28 23:21:00,240 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-28 23:21:00,240 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-28 23:21:00,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 42 transitions. [2021-10-28 23:21:00,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:21:00,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:21:00,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:21:00,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:21:00,245 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:21:00,245 INFO L791 eck$LassoCheckResult]: Stem: 2282#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 2283#L-1 havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset, entry_point_#t~post45, entry_point_#t~ret46, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 2291#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 2290#L529 entry_point_#t~ret44.base, entry_point_#t~ret44.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret44.base, entry_point_#t~ret44.offset;havoc entry_point_#t~ret44.base, entry_point_#t~ret44.offset; 2284#L787 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 2285#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2295#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2296#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2280#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2281#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2318#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2317#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2316#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2315#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2314#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2313#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2312#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2311#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2310#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2309#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2308#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2307#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2306#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2305#L788-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 2304#L788-2 entry_point_#t~post45 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post45;havoc entry_point_#t~post45; 2303#L788-3 assume !(entry_point_~i~2 < entry_point_~len~0); 2297#L788-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 2298#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 2301#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 2302#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 2288#L766 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 2289#L764-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 2292#L764-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 2299#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 2300#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 2286#L766 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 2287#L766-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 2294#L771-3 [2021-10-28 23:21:00,245 INFO L793 eck$LassoCheckResult]: Loop: 2294#L771-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 2293#L771-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 2294#L771-3 [2021-10-28 23:21:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash -694922329, now seen corresponding path program 1 times [2021-10-28 23:21:00,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:00,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671183390] [2021-10-28 23:21:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:00,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:00,304 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:00,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:00,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2947, now seen corresponding path program 2 times [2021-10-28 23:21:00,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:00,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160568634] [2021-10-28 23:21:00,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:00,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:00,354 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:00,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:21:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:00,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2100425303, now seen corresponding path program 1 times [2021-10-28 23:21:00,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:21:00,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061775274] [2021-10-28 23:21:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:00,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:21:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:00,410 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:21:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:21:00,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:08,622 WARN L207 SmtUtils]: Spent 4.13 m on a formula simplification. DAG size of input: 450 DAG size of output: 362 [2021-10-28 23:25:11,570 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:11,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:11,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:11,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:11,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:25:11,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:11,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:11,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:11,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_1-2.i_Iteration18_Lasso [2021-10-28 23:25:11,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:11,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:11,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:11,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:12,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:13,357 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:13,357 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:25:13,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,368 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:25:13,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:13,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:13,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:13,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,440 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:25:13,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:13,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:13,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,522 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:25:13,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:13,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:13,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:13,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,602 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:25:13,609 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 [2021-10-28 23:25:13,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:13,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:13,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:13,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,669 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:25:13,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:13,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:13,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,722 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:25:13,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:13,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:13,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:13,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:25:13,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,763 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:25:13,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:13,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:13,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,855 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:25:13,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,865 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 23:25:13,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,872 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:25:13,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:13,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,910 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:25:13,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:13,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:13,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:13,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,948 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:25:13,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:13,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:13,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:13,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:13,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:13,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:13,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:13,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:13,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:13,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:13,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:13,995 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:13,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:25:14,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:14,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:14,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:14,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:14,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:14,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:14,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:14,034 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:25:14,068 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-28 23:25:14,069 INFO L444 ModelExtractionUtils]: 22 out of 40 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-28 23:25:14,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:14,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:14,076 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:14,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:25:14,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:25:14,089 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:25:14,089 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:25:14,089 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_alloc_17_~j~0) = 2*ULTIMATE.start_alloc_17_~j~0 + 1 Supporting invariants [] [2021-10-28 23:25:14,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:14,146 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-28 23:25:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:25:14,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:14,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:14,401 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:25:14,401 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 42 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:14,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 42 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 45 transitions. Complement of second has 4 states. [2021-10-28 23:25:14,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:25:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2021-10-28 23:25:14,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 37 letters. Loop has 2 letters. [2021-10-28 23:25:14,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:14,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 39 letters. Loop has 2 letters. [2021-10-28 23:25:14,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:14,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 37 letters. Loop has 4 letters. [2021-10-28 23:25:14,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:14,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 45 transitions. [2021-10-28 23:25:14,416 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:14,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-10-28 23:25:14,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:25:14,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:25:14,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:25:14,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:14,416 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:14,416 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:14,417 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:14,417 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-28 23:25:14,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:25:14,417 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:14,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:25:14,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:25:14 BoogieIcfgContainer [2021-10-28 23:25:14,424 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:25:14,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:25:14,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:25:14,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:25:14,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:15:11" (3/4) ... [2021-10-28 23:25:14,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:25:14,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:25:14,431 INFO L168 Benchmark]: Toolchain (without parser) took 604193.89 ms. Allocated memory was 100.7 MB in the beginning and 188.7 MB in the end (delta: 88.1 MB). Free memory was 57.6 MB in the beginning and 66.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:14,431 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 75.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:14,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 914.58 ms. Allocated memory is still 100.7 MB. Free memory was 57.4 MB in the beginning and 62.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:14,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.92 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 59.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:14,433 INFO L168 Benchmark]: Boogie Preprocessor took 35.51 ms. Allocated memory is still 100.7 MB. Free memory was 59.8 MB in the beginning and 58.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:14,433 INFO L168 Benchmark]: RCFGBuilder took 518.88 ms. Allocated memory is still 100.7 MB. Free memory was 58.5 MB in the beginning and 46.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:14,434 INFO L168 Benchmark]: BuchiAutomizer took 602620.84 ms. Allocated memory was 100.7 MB in the beginning and 188.7 MB in the end (delta: 88.1 MB). Free memory was 45.7 MB in the beginning and 67.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:14,434 INFO L168 Benchmark]: Witness Printer took 4.91 ms. Allocated memory is still 188.7 MB. Free memory was 67.8 MB in the beginning and 66.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:14,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 75.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 914.58 ms. Allocated memory is still 100.7 MB. Free memory was 57.4 MB in the beginning and 62.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.92 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 59.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.51 ms. Allocated memory is still 100.7 MB. Free memory was 59.8 MB in the beginning and 58.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 518.88 ms. Allocated memory is still 100.7 MB. Free memory was 58.5 MB in the beginning and 46.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 602620.84 ms. Allocated memory was 100.7 MB in the beginning and 188.7 MB in the end (delta: 88.1 MB). Free memory was 45.7 MB in the beginning and 67.8 MB in the end (delta: -22.0 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.91 ms. Allocated memory is still 188.7 MB. Free memory was 67.8 MB in the beginning and 66.8 MB in the end (delta: 1.0 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 18 terminating modules (14 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function len + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * i + len and consists of 4 locations. One deterministic module has affine ranking function -1 * i + len and consists of 3 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. 14 modules have a trivial ranking function, the largest among these consists of 23 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 602.5s and 19 iterations. TraceHistogramMax:10. Analysis of lassos took 600.2s. Construction of modules took 0.5s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 66 StatesRemovedByMinimization, 15 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 49 states and ocurred in iteration 15. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 422 SDtfs, 506 SDslu, 804 SDs, 0 SdLazy, 432 SolverSat, 93 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU13 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital450 mio100 ax108 hnf100 lsp88 ukn40 mio100 lsp56 div100 bol100 ite100 ukn100 eq186 hnf89 smp97 dnf108 smp97 tf100 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 8 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:25:14,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:14,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:14,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:15,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-28 23:25:15,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:15,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:15,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:15,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-28 23:25:16,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49989c89-2ad3-4ebe-abb2-c9b9378d1d02/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...