./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.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_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/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_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/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_ec74baf6-e70a-4aec-aa44-490486e7f4c3/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 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:42:01,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:42:01,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:42:01,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:42:01,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:42:01,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:42:01,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:42:01,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:42:01,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:42:01,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:42:01,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:42:01,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:42:01,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:42:01,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:42:01,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:42:01,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:42:01,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:42:01,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:42:01,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:42:01,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:42:01,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:42:01,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:42:01,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:42:01,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:42:01,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:42:01,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:42:01,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:42:01,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:42:01,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:42:01,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:42:01,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:42:01,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:42:01,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:42:01,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:42:01,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:42:01,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:42:01,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:42:01,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:42:01,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:42:01,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:42:01,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:42:01,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:42:01,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:42:01,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:42:01,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:42:01,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:42:01,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:42:01,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:42:01,752 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:42:01,753 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:42:01,753 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:42:01,754 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:42:01,755 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:42:01,755 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:42:01,756 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:42:01,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:42:01,756 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:42:01,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:42:01,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:42:01,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:42:01,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:42:01,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:42:01,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:42:01,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:42:01,759 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:42:01,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:42:01,760 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:42:01,760 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:42:01,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:42:01,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:42:01,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:42:01,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:42:01,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:42:01,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:42:01,764 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:42:01,764 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_ec74baf6-e70a-4aec-aa44-490486e7f4c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 [2021-10-28 08:42:02,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:42:02,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:42:02,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:42:02,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:42:02,118 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:42:02,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-10-28 08:42:02,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/data/492c619cf/e1cdf9a54baa4a55abb12de26a423379/FLAG7be2d22dd [2021-10-28 08:42:02,765 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:42:02,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-10-28 08:42:02,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/data/492c619cf/e1cdf9a54baa4a55abb12de26a423379/FLAG7be2d22dd [2021-10-28 08:42:03,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/data/492c619cf/e1cdf9a54baa4a55abb12de26a423379 [2021-10-28 08:42:03,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:42:03,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:42:03,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:42:03,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:42:03,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:42:03,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15600a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03, skipping insertion in model container [2021-10-28 08:42:03,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:42:03,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:42:03,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-10-28 08:42:03,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:42:03,382 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:42:03,407 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-10-28 08:42:03,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:42:03,442 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:42:03,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03 WrapperNode [2021-10-28 08:42:03,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:42:03,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:42:03,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:42:03,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:42:03,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:42:03,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:42:03,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:42:03,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:42:03,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:42:03,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:42:03,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:42:03,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:42:03,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (1/1) ... [2021-10-28 08:42:03,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:03,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:03,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:03,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:42:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:42:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:42:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:42:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:42:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:42:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:42:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:42:03,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:42:03,858 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 08:42:03,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:03 BoogieIcfgContainer [2021-10-28 08:42:03,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:42:03,865 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:42:03,865 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:42:03,874 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:42:03,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:42:03,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:42:03" (1/3) ... [2021-10-28 08:42:03,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@583d7ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:42:03, skipping insertion in model container [2021-10-28 08:42:03,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:42:03,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:03" (2/3) ... [2021-10-28 08:42:03,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@583d7ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:42:03, skipping insertion in model container [2021-10-28 08:42:03,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:42:03,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:03" (3/3) ... [2021-10-28 08:42:03,901 INFO L389 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2021-10-28 08:42:03,972 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:42:03,973 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:42:03,973 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:42:03,973 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:42:03,973 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:42:03,974 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:42:03,974 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:42:03,974 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:42:03,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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 08:42:04,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 08:42:04,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:04,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:04,017 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:42:04,018 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:42:04,018 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:42:04,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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 08:42:04,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 08:42:04,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:04,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:04,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:42:04,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:42:04,029 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L18true assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 12#L23-2true [2021-10-28 08:42:04,029 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-2true assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 12#L23-2true [2021-10-28 08:42:04,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:04,036 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-28 08:42:04,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:04,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246389312] [2021-10-28 08:42:04,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:04,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:04,161 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:04,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:04,216 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2021-10-28 08:42:04,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:04,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430428544] [2021-10-28 08:42:04,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:04,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:04,250 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:04,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:04,291 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-10-28 08:42:04,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:04,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055315762] [2021-10-28 08:42:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:04,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:04,348 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:04,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:05,118 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:05,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:05,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:05,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:05,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:42:05,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:05,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:05,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:05,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2021-10-28 08:42:05,121 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:05,121 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:05,157 INFO 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 08:42:05,398 INFO 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 08:42:05,402 INFO 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 08:42:05,405 INFO 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 08:42:05,409 INFO 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 08:42:05,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:05,419 INFO 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 08:42:05,700 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:05,705 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:42:05,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:05,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:05,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:05,720 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 08:42:05,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:42:05,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:05,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:05,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:05,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:05,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:05,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:05,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:05,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:05,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:05,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:05,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:05,798 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 08:42:05,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:05,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:05,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:05,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:05,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:05,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:05,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:42:05,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:05,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 08:42:05,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:05,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:05,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:05,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:42:05,867 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 08:42:05,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:05,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:05,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:05,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:05,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:05,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:05,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:05,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:05,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:05,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:05,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:42:06,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:42:06,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 08:42:06,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,082 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 08:42:06,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:42:06,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:42:06,165 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 08:42:06,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:06,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:06,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:06,180 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 08:42:06,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,213 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:42:06,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:42:06,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,308 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 08:42:06,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:42:06,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:42:06,385 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 08:42:06,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,464 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:42:06,475 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 08:42:06,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:42:06,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:42:06,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:06,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:42:06,610 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 08:42:06,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:06,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:06,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:06,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:06,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:06,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:06,643 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:42:06,681 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-28 08:42:06,681 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-28 08:42:06,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:06,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:06,704 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:06,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:42:06,724 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:42:06,776 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 08:42:06,776 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:42:06,777 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1) = -4*ULTIMATE.start_main_~k~0 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1 Supporting invariants [1*ULTIMATE.start_main_~#a~0.offset >= 0] [2021-10-28 08:42:06,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:06,851 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-10-28 08:42:06,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:06,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:42:06,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:06,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:42:06,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:06,989 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 08:42:07,022 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 08:42:07,024 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:07,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 45 transitions. Complement of second has 6 states. [2021-10-28 08:42:07,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:42:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2021-10-28 08:42:07,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 08:42:07,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:07,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-28 08:42:07,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:07,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 08:42:07,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:07,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2021-10-28 08:42:07,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:42:07,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 9 states and 11 transitions. [2021-10-28 08:42:07,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 08:42:07,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 08:42:07,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-10-28 08:42:07,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:07,149 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-28 08:42:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-10-28 08:42:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-28 08:42:07,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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 08:42:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-10-28 08:42:07,177 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-28 08:42:07,177 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-28 08:42:07,177 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:42:07,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-10-28 08:42:07,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:42:07,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:07,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:07,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:42:07,179 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:42:07,179 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 127#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 122#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 123#L23-2 assume !(main_~i~0 < ~N~0); 128#L23-3 main_~i~0 := 0; 130#L29-2 [2021-10-28 08:42:07,180 INFO L793 eck$LassoCheckResult]: Loop: 130#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 124#L13 assume !(0 == __VERIFIER_assert_~cond); 125#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 130#L29-2 [2021-10-28 08:42:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2021-10-28 08:42:07,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:07,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790541884] [2021-10-28 08:42:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:07,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:07,277 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 08:42:07,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:07,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790541884] [2021-10-28 08:42:07,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790541884] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:07,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:42:07,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:42:07,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657451447] [2021-10-28 08:42:07,284 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:42:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 1 times [2021-10-28 08:42:07,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:07,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597901804] [2021-10-28 08:42:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:07,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:07,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:07,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:42:07,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:42:07,440 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 08:42:07,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:07,463 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-28 08:42:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:42:07,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-28 08:42:07,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:42:07,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-10-28 08:42:07,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 08:42:07,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 08:42:07,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-10-28 08:42:07,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:07,468 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-28 08:42:07,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-10-28 08:42:07,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-28 08:42:07,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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 08:42:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-28 08:42:07,474 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-28 08:42:07,475 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-28 08:42:07,475 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:42:07,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-10-28 08:42:07,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:42:07,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:07,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:07,480 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:42:07,480 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:42:07,480 INFO L791 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 151#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 146#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 147#L23-2 assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 152#L23-2 assume !(main_~i~0 < ~N~0); 153#L23-3 main_~i~0 := 0; 154#L29-2 [2021-10-28 08:42:07,480 INFO L793 eck$LassoCheckResult]: Loop: 154#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 148#L13 assume !(0 == __VERIFIER_assert_~cond); 149#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 154#L29-2 [2021-10-28 08:42:07,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2021-10-28 08:42:07,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:07,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984495282] [2021-10-28 08:42:07,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:07,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,521 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:07,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:07,562 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 2 times [2021-10-28 08:42:07,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:07,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811021346] [2021-10-28 08:42:07,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:07,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,584 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,597 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:07,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash -450855381, now seen corresponding path program 1 times [2021-10-28 08:42:07,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:07,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145796048] [2021-10-28 08:42:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:07,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,626 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:07,646 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:07,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:08,211 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:08,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:08,212 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:08,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:08,212 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:42:08,212 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:08,212 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:08,212 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:08,212 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2021-10-28 08:42:08,212 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:08,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:08,216 INFO 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 08:42:08,219 INFO 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 08:42:08,222 INFO 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 08:42:08,225 INFO 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 08:42:08,417 INFO 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 08:42:08,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:08,426 INFO 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 08:42:08,428 INFO 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 08:42:08,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:08,681 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:42:08,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:08,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:08,684 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:08,688 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 08:42:08,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:08,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:08,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:08,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:08,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:08,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:08,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:08,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:42:08,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:08,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:08,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:08,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:08,752 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:08,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:42:08,758 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 08:42:08,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:08,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:08,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:08,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:08,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:08,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:08,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:08,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:08,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:08,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:08,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:08,829 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:08,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:42:08,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:08,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:08,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:08,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:08,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:08,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:08,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:42:08,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:08,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:08,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:08,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:08,900 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:08,906 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 08:42:08,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:08,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:08,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:08,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:08,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:42:08,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:42:08,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:42:08,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:42:09,005 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-28 08:42:09,005 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-28 08:42:09,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:09,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:09,007 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:09,014 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:42:09,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:42:09,052 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:42:09,052 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:42:09,052 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#a~0.offset, ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2) = -1*ULTIMATE.start_main_~#a~0.offset - 4*ULTIMATE.start_main_~i~0 + 2*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2 Supporting invariants [] [2021-10-28 08:42:09,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:09,117 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-28 08:42:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:09,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:09,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:09,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:42:09,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:09,239 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 08:42:09,242 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 08:42:09,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:09,257 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 14 transitions. Complement of second has 4 states. [2021-10-28 08:42:09,258 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 08:42:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-28 08:42:09,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 08:42:09,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2021-10-28 08:42:09,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2021-10-28 08:42:09,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:09,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-10-28 08:42:09,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:42:09,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-10-28 08:42:09,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:42:09,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:42:09,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:42:09,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:09,295 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:09,296 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:09,296 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:09,296 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:42:09,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:42:09,296 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:42:09,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:42:09,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:42:09 BoogieIcfgContainer [2021-10-28 08:42:09,302 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:42:09,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:42:09,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:42:09,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:42:09,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:03" (3/4) ... [2021-10-28 08:42:09,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:42:09,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:42:09,308 INFO L168 Benchmark]: Toolchain (without parser) took 6181.82 ms. Allocated memory was 94.4 MB in the beginning and 151.0 MB in the end (delta: 56.6 MB). Free memory was 58.8 MB in the beginning and 124.1 MB in the end (delta: -65.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:09,309 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 65.5 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:09,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.37 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 58.6 MB in the beginning and 100.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:09,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.47 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 99.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:09,335 INFO L168 Benchmark]: Boogie Preprocessor took 29.18 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 98.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:09,337 INFO L168 Benchmark]: RCFGBuilder took 343.25 ms. Allocated memory is still 125.8 MB. Free memory was 98.1 MB in the beginning and 88.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:09,338 INFO L168 Benchmark]: BuchiAutomizer took 5437.17 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 88.4 MB in the beginning and 124.1 MB in the end (delta: -35.7 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:09,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:09,343 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:09,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 65.5 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.37 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 58.6 MB in the beginning and 100.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.47 ms. Allocated memory is still 125.8 MB. Free memory was 100.6 MB in the beginning and 99.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.18 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 98.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 343.25 ms. Allocated memory is still 125.8 MB. Free memory was 98.1 MB in the beginning and 88.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5437.17 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 88.4 MB in the beginning and 124.1 MB in the end (delta: -35.7 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.87 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[a] + -4 * k and consists of 4 locations. One deterministic module has affine ranking function -1 * a + -4 * i + 2 * unknown-#length-unknown[a] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 8 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital176 mio100 ax100 hnf99 lsp93 ukn62 mio100 lsp59 div100 bol100 ite100 ukn100 eq171 hnf93 smp100 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:42:09,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec74baf6-e70a-4aec-aa44-490486e7f4c3/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...