./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.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_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:40:02,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:40:02,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:40:02,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:40:02,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:40:02,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:40:02,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:40:02,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:40:02,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:40:02,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:40:02,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:40:02,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:40:02,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:40:02,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:40:02,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:40:02,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:40:02,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:40:02,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:40:02,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:40:02,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:40:02,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:40:02,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:40:02,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:40:02,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:40:02,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:40:02,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:40:02,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:40:02,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:40:02,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:40:02,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:40:02,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:40:02,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:40:02,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:40:02,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:40:02,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:40:02,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:40:02,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:40:02,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:40:02,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:40:02,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:40:02,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:40:02,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:40:02,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:40:02,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:40:02,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:40:02,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:40:02,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:40:02,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:40:02,610 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:40:02,610 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:40:02,611 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:40:02,611 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:40:02,613 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:40:02,613 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:40:02,613 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:40:02,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:40:02,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:40:02,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:40:02,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:40:02,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:40:02,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:40:02,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:40:02,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:40:02,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:40:02,616 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:40:02,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:40:02,617 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:40:02,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:40:02,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:40:02,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:40:02,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:40:02,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:40:02,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:40:02,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:40:02,623 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:40:02,623 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_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-28 08:40:02,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:40:02,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:40:02,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:40:02,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:40:02,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:40:02,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 08:40:03,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/data/7a49c24fb/85bf7bcc49cb4adfa74f9b350582c82d/FLAG436afcb3e [2021-10-28 08:40:03,762 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:40:03,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 08:40:03,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/data/7a49c24fb/85bf7bcc49cb4adfa74f9b350582c82d/FLAG436afcb3e [2021-10-28 08:40:04,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/data/7a49c24fb/85bf7bcc49cb4adfa74f9b350582c82d [2021-10-28 08:40:04,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:40:04,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:40:04,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:04,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:40:04,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:40:04,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442b110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04, skipping insertion in model container [2021-10-28 08:40:04,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:40:04,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:40:04,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:04,677 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:40:04,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:04,851 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:40:04,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04 WrapperNode [2021-10-28 08:40:04,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:04,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:04,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:40:04,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:40:04,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:04,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:40:04,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:40:04,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:40:04,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:04,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:05,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:05,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:05,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:05,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:40:05,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:40:05,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:40:05,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:40:05,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (1/1) ... [2021-10-28 08:40:05,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:40:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:40:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:40:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:40:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:40:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:40:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:40:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:40:05,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:40:05,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:40:05,495 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-28 08:40:05,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:05 BoogieIcfgContainer [2021-10-28 08:40:05,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:40:05,499 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:40:05,499 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:40:05,503 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:40:05,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:40:05,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:40:04" (1/3) ... [2021-10-28 08:40:05,507 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bed25ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:40:05, skipping insertion in model container [2021-10-28 08:40:05,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:40:05,507 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:04" (2/3) ... [2021-10-28 08:40:05,508 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bed25ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:40:05, skipping insertion in model container [2021-10-28 08:40:05,508 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:40:05,508 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:05" (3/3) ... [2021-10-28 08:40:05,510 INFO L389 chiAutomizerObserver]: Analyzing ICFG memleaks_test18.i [2021-10-28 08:40:05,573 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:40:05,573 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:40:05,573 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:40:05,573 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:40:05,573 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:40:05,574 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:40:05,574 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:40:05,574 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:40:05,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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 08:40:05,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 08:40:05,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:05,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:05,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:05,628 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:05,628 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:40:05,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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 08:40:05,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 08:40:05,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:05,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:05,632 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:05,632 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:05,638 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 9#L-1true havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 14#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 8#L529true entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 6#L763true assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 11#L767-3true [2021-10-28 08:40:05,638 INFO L793 eck$LassoCheckResult]: Loop: 11#L767-3true assume !!(entry_point_~i~0 < entry_point_~len~0);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; 16#L526-1true 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; 17#L529-1true entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 15#L769true assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 13#L767-2true entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 11#L767-3true [2021-10-28 08:40:05,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash 28695751, now seen corresponding path program 1 times [2021-10-28 08:40:05,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:05,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124226802] [2021-10-28 08:40:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:05,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:05,955 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 08:40:05,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:05,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124226802] [2021-10-28 08:40:05,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124226802] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:05,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:05,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:40:05,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319202915] [2021-10-28 08:40:05,973 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:40:05,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:05,977 INFO L85 PathProgramCache]: Analyzing trace with hash 47811737, now seen corresponding path program 1 times [2021-10-28 08:40:05,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:05,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113756266] [2021-10-28 08:40:05,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:05,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,041 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:06,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:06,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:06,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:40:06,599 INFO L87 Difference]: Start difference. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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 08:40:06,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:06,684 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2021-10-28 08:40:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:40:06,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-10-28 08:40:06,693 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-28 08:40:06,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 20 states and 25 transitions. [2021-10-28 08:40:06,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 08:40:06,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 08:40:06,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-10-28 08:40:06,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:40:06,704 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 08:40:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-10-28 08:40:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2021-10-28 08:40:06,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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 08:40:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-28 08:40:06,739 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 08:40:06,739 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 08:40:06,739 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:40:06,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-10-28 08:40:06,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 08:40:06,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:06,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:06,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:06,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:06,745 INFO L791 eck$LassoCheckResult]: Stem: 62#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); 63#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 68#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; 67#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 64#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 65#L767-3 [2021-10-28 08:40:06,746 INFO L793 eck$LassoCheckResult]: Loop: 65#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 69#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset;havoc ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 72#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 71#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 70#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 65#L767-3 [2021-10-28 08:40:06,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:06,748 INFO L85 PathProgramCache]: Analyzing trace with hash 28693829, now seen corresponding path program 1 times [2021-10-28 08:40:06,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:06,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109686356] [2021-10-28 08:40:06,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:06,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,787 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:06,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:06,825 INFO L85 PathProgramCache]: Analyzing trace with hash 47811737, now seen corresponding path program 2 times [2021-10-28 08:40:06,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:06,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889341754] [2021-10-28 08:40:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:06,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,893 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:06,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:06,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1232444971, now seen corresponding path program 1 times [2021-10-28 08:40:06,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:06,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090018539] [2021-10-28 08:40:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:06,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,952 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:06,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:07,915 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:07,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:07,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:07,917 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:07,917 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:07,917 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:07,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:07,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:07,918 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18.i_Iteration2_Lasso [2021-10-28 08:40:07,918 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:07,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:07,960 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 08:40:07,969 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 08:40:07,972 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 08:40:07,976 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 08:40:08,297 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 08:40:08,300 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 08:40:08,303 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 08:40:08,306 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 08:40:08,309 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 08:40:08,312 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 08:40:08,316 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 08:40:08,319 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 08:40:08,322 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 08:40:08,325 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 08:40:08,328 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 08:40:08,331 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 08:40:08,334 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 08:40:08,337 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 08:40:08,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:08,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:09,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:09,014 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:09,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:09,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:09,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:09,025 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 08:40:09,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:09,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:09,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:09,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:09,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:09,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:09,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:40:09,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:09,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 08:40:09,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:09,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:09,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:09,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:40:09,095 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 08:40:09,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:09,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:09,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:09,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:09,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:09,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:09,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:09,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:09,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:09,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:09,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:09,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:09,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:40:09,160 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 08:40:09,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:09,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:09,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:09,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:09,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:09,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:09,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:09,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:09,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:09,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:09,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:09,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:09,266 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 08:40:09,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:09,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:09,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:09,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:09,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:40:09,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:09,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:09,335 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:09,396 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-28 08:40:09,396 INFO L444 ModelExtractionUtils]: 18 out of 40 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-10-28 08:40:09,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:09,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:09,407 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:40:09,436 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:09,458 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:40:09,459 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:09,459 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~len~0, ULTIMATE.start_entry_point_~i~0) = 1*ULTIMATE.start_entry_point_~len~0 - 1*ULTIMATE.start_entry_point_~i~0 Supporting invariants [] [2021-10-28 08:40:09,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:09,539 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-10-28 08:40:09,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:09,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:09,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:09,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:09,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:09,709 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 08:40:09,713 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 08:40:09,714 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:09,775 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 6 states. [2021-10-28 08:40:09,775 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 08:40:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-10-28 08:40:09,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 5 letters. [2021-10-28 08:40:09,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:09,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 5 letters. [2021-10-28 08:40:09,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:09,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 08:40:09,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:09,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-10-28 08:40:09,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 08:40:09,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 20 states and 26 transitions. [2021-10-28 08:40:09,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 08:40:09,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-28 08:40:09,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-10-28 08:40:09,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:09,809 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-28 08:40:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-10-28 08:40:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2021-10-28 08:40:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 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 08:40:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2021-10-28 08:40:09,815 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 08:40:09,815 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 08:40:09,816 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:40:09,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2021-10-28 08:40:09,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:09,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:09,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:09,817 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:09,818 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:09,818 INFO L791 eck$LassoCheckResult]: Stem: 173#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); 174#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 181#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; 180#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 177#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 178#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 179#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 175#L773-3 [2021-10-28 08:40:09,818 INFO L793 eck$LassoCheckResult]: Loop: 175#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 176#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 175#L773-3 [2021-10-28 08:40:09,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:09,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966489, now seen corresponding path program 1 times [2021-10-28 08:40:09,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:09,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785239933] [2021-10-28 08:40:09,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:09,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:09,904 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 08:40:09,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:09,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785239933] [2021-10-28 08:40:09,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785239933] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:09,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:09,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:40:09,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460912117] [2021-10-28 08:40:09,907 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:40:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 1 times [2021-10-28 08:40:09,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:09,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246745476] [2021-10-28 08:40:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:09,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:09,927 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:09,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:09,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:40:09,998 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 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 08:40:10,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:10,022 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-10-28 08:40:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:40:10,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-10-28 08:40:10,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 08:40:10,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2021-10-28 08:40:10,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 08:40:10,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 08:40:10,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2021-10-28 08:40:10,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:10,027 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-10-28 08:40:10,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2021-10-28 08:40:10,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2021-10-28 08:40:10,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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 08:40:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-10-28 08:40:10,030 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-28 08:40:10,030 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-28 08:40:10,030 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:40:10,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2021-10-28 08:40:10,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:10,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:10,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:10,032 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:10,033 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:10,033 INFO L791 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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); 225#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 232#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; 231#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 228#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 229#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);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; 234#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 239#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 237#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 230#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 226#L773-3 [2021-10-28 08:40:10,033 INFO L793 eck$LassoCheckResult]: Loop: 226#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 227#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 226#L773-3 [2021-10-28 08:40:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1232385447, now seen corresponding path program 1 times [2021-10-28 08:40:10,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100668318] [2021-10-28 08:40:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,048 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:10,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 2 times [2021-10-28 08:40:10,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303353080] [2021-10-28 08:40:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,093 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,104 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1088560603, now seen corresponding path program 1 times [2021-10-28 08:40:10,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067465937] [2021-10-28 08:40:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:10,176 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 08:40:10,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:10,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067465937] [2021-10-28 08:40:10,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067465937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:10,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:10,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:40:10,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822496784] [2021-10-28 08:40:10,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:10,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:10,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:40:10,225 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 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 08:40:10,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:10,272 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-10-28 08:40:10,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:40:10,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-10-28 08:40:10,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:10,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2021-10-28 08:40:10,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 08:40:10,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 08:40:10,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2021-10-28 08:40:10,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:10,285 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-10-28 08:40:10,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2021-10-28 08:40:10,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-28 08:40:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-10-28 08:40:10,291 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 08:40:10,291 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 08:40:10,291 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:40:10,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-10-28 08:40:10,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:10,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:10,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:10,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:10,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:10,298 INFO L791 eck$LassoCheckResult]: Stem: 280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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); 281#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 286#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; 285#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 282#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 283#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);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; 289#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 294#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 292#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 287#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 288#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 284#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 278#L773-3 [2021-10-28 08:40:10,298 INFO L793 eck$LassoCheckResult]: Loop: 278#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 279#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 278#L773-3 [2021-10-28 08:40:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1088615463, now seen corresponding path program 1 times [2021-10-28 08:40:10,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204496703] [2021-10-28 08:40:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:10,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:10,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204496703] [2021-10-28 08:40:10,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204496703] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:10,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:10,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:40:10,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097032469] [2021-10-28 08:40:10,381 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:40:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 3 times [2021-10-28 08:40:10,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342533801] [2021-10-28 08:40:10,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,395 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:10,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:10,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:10,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:40:10,480 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 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 08:40:10,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:10,546 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-10-28 08:40:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:40:10,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 30 transitions. [2021-10-28 08:40:10,551 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-10-28 08:40:10,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 28 transitions. [2021-10-28 08:40:10,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 08:40:10,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 08:40:10,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2021-10-28 08:40:10,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:10,553 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-10-28 08:40:10,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2021-10-28 08:40:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2021-10-28 08:40:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:10,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-10-28 08:40:10,555 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 08:40:10,556 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 08:40:10,556 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:40:10,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2021-10-28 08:40:10,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:10,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:10,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:10,558 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:10,558 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:10,558 INFO L791 eck$LassoCheckResult]: Stem: 333#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); 334#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 339#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; 338#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 335#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 336#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);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; 340#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; 347#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 345#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 343#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 341#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 337#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 331#L773-3 [2021-10-28 08:40:10,558 INFO L793 eck$LassoCheckResult]: Loop: 331#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 332#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 331#L773-3 [2021-10-28 08:40:10,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1031357161, now seen corresponding path program 1 times [2021-10-28 08:40:10,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731589292] [2021-10-28 08:40:10,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:10,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:10,639 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 08:40:10,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:10,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731589292] [2021-10-28 08:40:10,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731589292] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:10,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953887816] [2021-10-28 08:40:10,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:10,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:10,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:10,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 08:40:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:10,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:10,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:10,860 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 08:40:10,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953887816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:10,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:40:10,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 08:40:10,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329281813] [2021-10-28 08:40:10,874 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:40:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 4 times [2021-10-28 08:40:10,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217974497] [2021-10-28 08:40:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,885 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:10,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:10,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:40:10,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:40:10,950 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 08:40:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:10,985 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2021-10-28 08:40:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:40:10,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-10-28 08:40:10,987 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 08:40:10,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 37 transitions. [2021-10-28 08:40:10,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 08:40:10,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 08:40:10,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 37 transitions. [2021-10-28 08:40:10,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:10,989 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-10-28 08:40:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 37 transitions. [2021-10-28 08:40:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2021-10-28 08:40:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 21 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 08:40:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-10-28 08:40:10,992 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-28 08:40:10,992 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-28 08:40:10,992 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 08:40:10,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 26 transitions. [2021-10-28 08:40:10,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:10,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:10,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:10,994 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:10,994 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:10,995 INFO L791 eck$LassoCheckResult]: Stem: 423#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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); 424#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 431#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; 430#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 427#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 428#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);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; 432#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; 444#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 443#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 442#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 433#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 435#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 440#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 438#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 429#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 425#L773-3 [2021-10-28 08:40:10,995 INFO L793 eck$LassoCheckResult]: Loop: 425#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 426#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 425#L773-3 [2021-10-28 08:40:10,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1033365559, now seen corresponding path program 1 times [2021-10-28 08:40:10,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468166556] [2021-10-28 08:40:10,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,010 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,027 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:11,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:11,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 5 times [2021-10-28 08:40:11,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:11,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113869179] [2021-10-28 08:40:11,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:11,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,034 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash -926855349, now seen corresponding path program 1 times [2021-10-28 08:40:11,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:11,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168619108] [2021-10-28 08:40:11,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:11,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,076 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:12,255 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:12,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:12,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:12,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:12,256 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:12,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:12,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:12,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:12,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18.i_Iteration7_Lasso [2021-10-28 08:40:12,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:12,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:12,263 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 08:40:12,536 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 08:40:12,542 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 08:40:12,545 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 08:40:12,548 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 08:40:12,552 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 08:40:12,555 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 08:40:12,559 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 08:40:12,563 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 08:40:12,565 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 08:40:12,569 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 08:40:12,572 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 08:40:12,575 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 08:40:12,578 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 08:40:12,582 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 08:40:12,585 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 08:40:12,589 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 08:40:12,595 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 08:40:12,600 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 08:40:12,603 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 08:40:12,607 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 08:40:12,612 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 08:40:12,615 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 08:40:13,171 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:13,174 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:13,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,176 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:40:13,186 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 08:40:13,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:13,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:13,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:13,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,277 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,288 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 08:40:13,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:13,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:13,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:13,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:40:13,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-28 08:40:13,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:40:13,360 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 08:40:13,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:13,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:13,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-28 08:40:13,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,412 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:40:13,416 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 08:40:13,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:13,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:13,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:13,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:13,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,500 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:40:13,503 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 08:40:13,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:13,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:13,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-28 08:40:13,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,603 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 08:40:13,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:13,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:13,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:40:13,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:13,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,666 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,676 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 08:40:13,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:13,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:13,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:40:13,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:13,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,755 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:40:13,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:13,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,770 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 08:40:13,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,779 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:40:13,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:13,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:13,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,855 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,864 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 08:40:13,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:13,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:13,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:40:13,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:13,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:13,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:13,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:40:13,950 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 08:40:13,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:13,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:13,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:13,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:13,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:13,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:13,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:13,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:14,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:14,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:14,023 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:14,030 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 08:40:14,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:14,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:14,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:14,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:14,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:14,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:14,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:14,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:40:14,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:14,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:14,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:14,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:14,103 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:14,112 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 08:40:14,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:14,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:14,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:14,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:14,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:14,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:14,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:40:14,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:14,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:14,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:14,188 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:14,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:14,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:14,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:14,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:14,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:14,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:14,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:14,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:40:14,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:14,281 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-28 08:40:14,281 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 08:40:14,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:14,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:14,284 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:14,289 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:14,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:40:14,312 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:40:14,312 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:14,312 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~j~0) = 2*ULTIMATE.start_entry_point_~j~0 + 1 Supporting invariants [] [2021-10-28 08:40:14,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:14,368 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 08:40:14,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:14,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:14,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:14,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:14,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:14,460 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 08:40:14,461 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 08:40:14,461 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:14,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 29 transitions. Complement of second has 4 states. [2021-10-28 08:40:14,469 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 08:40:14,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:40:14,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-10-28 08:40:14,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-28 08:40:14,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:14,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2021-10-28 08:40:14,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:14,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 08:40:14,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:14,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2021-10-28 08:40:14,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:40:14,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-28 08:40:14,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:40:14,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:40:14,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:40:14,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:40:14,474 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:14,474 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:14,474 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:14,474 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 08:40:14,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:40:14,474 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:40:14,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:40:14,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:40:14 BoogieIcfgContainer [2021-10-28 08:40:14,481 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:40:14,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:40:14,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:40:14,482 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:40:14,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:05" (3/4) ... [2021-10-28 08:40:14,487 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:40:14,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:40:14,489 INFO L168 Benchmark]: Toolchain (without parser) took 10463.37 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 63.5 MB in the beginning and 61.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:14,489 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:14,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.59 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 63.3 MB in the beginning and 113.2 MB in the end (delta: -49.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:14,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.67 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 111.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:14,491 INFO L168 Benchmark]: Boogie Preprocessor took 51.38 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 109.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:14,492 INFO L168 Benchmark]: RCFGBuilder took 475.59 ms. Allocated memory is still 151.0 MB. Free memory was 109.6 MB in the beginning and 98.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:14,492 INFO L168 Benchmark]: BuchiAutomizer took 8982.40 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 98.5 MB in the beginning and 61.8 MB in the end (delta: 36.7 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:14,492 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 182.5 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:14,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 828.59 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 63.3 MB in the beginning and 113.2 MB in the end (delta: -49.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.67 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 111.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.38 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 109.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 475.59 ms. Allocated memory is still 151.0 MB. Free memory was 109.6 MB in the beginning and 98.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8982.40 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 98.5 MB in the beginning and 61.8 MB in the end (delta: 36.7 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.28 ms. Allocated memory is still 182.5 MB. Free memory is still 61.8 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 7 terminating modules (5 trivial, 2 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 2 * j + 1 and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 8.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 115 SDtfs, 114 SDslu, 114 SDs, 0 SdLazy, 94 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU4 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital250 mio100 ax111 hnf101 lsp82 ukn53 mio100 lsp56 div100 bol100 ite100 ukn100 eq189 hnf91 smp100 dnf117 smp92 tf100 neg96 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 6 VariablesLoop: 0 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 08:40:14,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:14,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:14,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70292d67-7c3b-4565-a15a-1d52b3ba8373/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...