./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/bubble_sort-1.c --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_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/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_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/bubble_sort-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/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_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/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 121046493a5b65b32f3b8bf8adee655ff03b45acd38f0a8519ee3c99065fa840 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:46:32,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:46:32,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:46:32,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:46:32,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:46:32,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:46:32,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:46:32,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:46:32,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:46:32,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:46:32,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:46:32,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:46:32,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:46:32,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:46:32,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:46:32,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:46:32,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:46:32,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:46:32,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:46:32,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:46:32,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:46:32,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:46:32,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:46:32,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:46:32,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:46:32,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:46:32,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:46:32,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:46:32,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:46:32,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:46:32,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:46:32,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:46:32,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:46:32,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:46:32,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:46:32,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:46:32,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:46:32,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:46:32,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:46:32,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:46:32,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:46:32,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:46:32,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:46:32,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:46:32,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:46:32,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:46:32,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:46:32,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:46:32,840 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:46:32,841 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:46:32,841 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:46:32,841 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:46:32,843 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:46:32,843 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:46:32,843 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:46:32,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:46:32,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:46:32,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:46:32,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:46:32,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:46:32,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:46:32,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:46:32,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:46:32,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:46:32,845 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:46:32,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:46:32,845 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:46:32,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:46:32,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:46:32,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:46:32,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:46:32,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:46:32,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:46:32,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:46:32,849 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:46:32,849 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_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 121046493a5b65b32f3b8bf8adee655ff03b45acd38f0a8519ee3c99065fa840 [2021-10-28 09:46:33,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:46:33,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:46:33,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:46:33,316 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:46:33,318 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:46:33,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loops/bubble_sort-1.c [2021-10-28 09:46:33,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/data/03e15d78d/0b54fe44b477412292dcdfc2149d376d/FLAGfd2910c23 [2021-10-28 09:46:34,049 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:46:34,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/sv-benchmarks/c/loops/bubble_sort-1.c [2021-10-28 09:46:34,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/data/03e15d78d/0b54fe44b477412292dcdfc2149d376d/FLAGfd2910c23 [2021-10-28 09:46:34,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/data/03e15d78d/0b54fe44b477412292dcdfc2149d376d [2021-10-28 09:46:34,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:46:34,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:46:34,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:46:34,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:46:34,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:46:34,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f41b7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34, skipping insertion in model container [2021-10-28 09:46:34,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:46:34,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:46:34,660 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_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/sv-benchmarks/c/loops/bubble_sort-1.c[325,338] [2021-10-28 09:46:34,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:46:34,736 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:46:34,758 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_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/sv-benchmarks/c/loops/bubble_sort-1.c[325,338] [2021-10-28 09:46:34,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:46:34,818 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:46:34,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34 WrapperNode [2021-10-28 09:46:34,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:46:34,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:46:34,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:46:34,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:46:34,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:46:34,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:46:34,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:46:34,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:46:34,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:34,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:46:34,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:46:34,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:46:34,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:46:34,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (1/1) ... [2021-10-28 09:46:35,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:35,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:35,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:35,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:46:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:46:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:46:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:46:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:46:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:46:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:46:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:46:35,581 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:46:35,581 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 09:46:35,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:35 BoogieIcfgContainer [2021-10-28 09:46:35,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:46:35,585 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:46:35,585 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:46:35,590 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:46:35,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:46:35,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:46:34" (1/3) ... [2021-10-28 09:46:35,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fcb4cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:46:35, skipping insertion in model container [2021-10-28 09:46:35,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:46:35,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:34" (2/3) ... [2021-10-28 09:46:35,595 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fcb4cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:46:35, skipping insertion in model container [2021-10-28 09:46:35,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:46:35,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:35" (3/3) ... [2021-10-28 09:46:35,597 INFO L389 chiAutomizerObserver]: Analyzing ICFG bubble_sort-1.c [2021-10-28 09:46:35,656 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:46:35,656 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:46:35,656 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:46:35,656 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:46:35,656 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:46:35,657 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:46:35,657 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:46:35,657 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:46:35,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 26 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:35,717 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 14 [2021-10-28 09:46:35,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:35,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:35,725 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:46:35,726 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:46:35,726 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:46:35,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 26 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:35,734 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 14 [2021-10-28 09:46:35,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:35,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:35,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:46:35,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:46:35,747 INFO L791 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 6#L56true assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 27#L65true assume q1_#t~switch20;q1_~i~1 := 0; 11#L66-3true [2021-10-28 09:46:35,757 INFO L793 eck$LassoCheckResult]: Loop: 11#L66-3true assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 12#L66-2true q1_#t~pre21 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre21; 11#L66-3true [2021-10-28 09:46:35,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2021-10-28 09:46:35,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:35,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204666774] [2021-10-28 09:46:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:35,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:36,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:36,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204666774] [2021-10-28 09:46:36,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204666774] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:36,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:36,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:46:36,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148833809] [2021-10-28 09:46:36,087 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:46:36,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 1 times [2021-10-28 09:46:36,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:36,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219656591] [2021-10-28 09:46:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:36,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,104 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:36,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:36,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:46:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:46:36,246 INFO L87 Difference]: Start difference. First operand has 27 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 26 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:36,277 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-10-28 09:46:36,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:46:36,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-28 09:46:36,282 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-28 09:46:36,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 19 states and 25 transitions. [2021-10-28 09:46:36,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 09:46:36,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-28 09:46:36,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-10-28 09:46:36,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:36,291 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-28 09:46:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-10-28 09:46:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-28 09:46:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-10-28 09:46:36,328 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-28 09:46:36,328 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-28 09:46:36,328 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:46:36,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-10-28 09:46:36,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-28 09:46:36,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:36,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:36,331 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:46:36,331 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:46:36,331 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 61#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 64#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 65#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 77#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 76#L73 assume q1_#t~switch20;q1_~i~1 := 0; 71#L74-3 [2021-10-28 09:46:36,332 INFO L793 eck$LassoCheckResult]: Loop: 71#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 70#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 71#L74-3 [2021-10-28 09:46:36,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:36,333 INFO L85 PathProgramCache]: Analyzing trace with hash 889584664, now seen corresponding path program 1 times [2021-10-28 09:46:36,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:36,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612106061] [2021-10-28 09:46:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:36,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,360 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:36,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:36,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2691, now seen corresponding path program 1 times [2021-10-28 09:46:36,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:36,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835858282] [2021-10-28 09:46:36,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:36,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,402 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:36,413 INFO L85 PathProgramCache]: Analyzing trace with hash 192371930, now seen corresponding path program 1 times [2021-10-28 09:46:36,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:36,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597983907] [2021-10-28 09:46:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:36,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:36,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:37,936 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:37,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:37,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:37,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:37,938 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:46:37,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:37,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:37,938 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:37,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration2_Lasso [2021-10-28 09:46:37,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:37,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:37,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:38,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:46:38,883 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:46:38,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:38,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:38,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:38,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:38,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:38,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:38,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:38,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:38,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:38,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:38,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:46:38,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:38,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:38,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:38,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:38,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:46:39,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:46:39,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:39,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:39,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:46:39,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:39,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:39,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:46:39,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:46:39,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 09:46:39,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,353 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:46:39,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,406 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:46:39,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,469 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:46:39,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:39,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:39,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:46:39,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,651 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:46:39,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:39,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:39,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,751 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:46:39,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,828 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:46:39,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:39,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:39,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:39,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:39,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:39,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:39,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:39,912 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:39,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:39,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:39,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:39,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:39,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:39,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:46:39,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:39,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:39,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,007 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:46:40,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,092 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:46:40,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,180 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:46:40,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,265 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:46:40,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,351 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:46:40,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,452 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:46:40,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,506 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:46:40,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 09:46:40,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,548 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:46:40,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,592 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:46:40,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:40,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,635 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:46:40,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:40,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:40,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:40,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:40,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:40,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:40,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:40,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:46:40,737 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-28 09:46:40,737 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-28 09:46:40,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:40,744 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:40,756 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:46:40,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:46:40,788 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 09:46:40,788 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:46:40,789 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_q1_~#a~1.base)_1, ULTIMATE.start_q1_~i~1) = 1*v_rep(select #length ULTIMATE.start_q1_~#a~1.base)_1 - 4*ULTIMATE.start_q1_~i~1 Supporting invariants [1*ULTIMATE.start_q1_~#a~1.offset >= 0] [2021-10-28 09:46:40,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:40,899 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2021-10-28 09:46:40,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:46:41,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:46:41,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:41,176 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 09:46:41,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 28 states and 40 transitions. Complement of second has 8 states. [2021-10-28 09:46:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:46:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-28 09:46:41,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 09:46:41,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:41,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 09:46:41,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:41,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 09:46:41,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:41,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 40 transitions. [2021-10-28 09:46:41,290 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 09:46:41,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 26 states and 36 transitions. [2021-10-28 09:46:41,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-10-28 09:46:41,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 09:46:41,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 36 transitions. [2021-10-28 09:46:41,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:41,294 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-28 09:46:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 36 transitions. [2021-10-28 09:46:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2021-10-28 09:46:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-10-28 09:46:41,299 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-28 09:46:41,299 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-28 09:46:41,299 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:46:41,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2021-10-28 09:46:41,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 09:46:41,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:41,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:41,304 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:41,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:46:41,305 INFO L791 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 210#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 213#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 214#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 227#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 225#L73 assume !q1_#t~switch20; 211#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 212#L18-3 [2021-10-28 09:46:41,305 INFO L793 eck$LassoCheckResult]: Loop: 212#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 223#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 222#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 212#L18-3 [2021-10-28 09:46:41,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1807321784, now seen corresponding path program 1 times [2021-10-28 09:46:41,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467916040] [2021-10-28 09:46:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:41,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:41,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467916040] [2021-10-28 09:46:41,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467916040] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:41,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:41,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:46:41,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70088729] [2021-10-28 09:46:41,369 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:46:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 114407, now seen corresponding path program 1 times [2021-10-28 09:46:41,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813193892] [2021-10-28 09:46:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:41,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:41,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813193892] [2021-10-28 09:46:41,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813193892] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:41,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:41,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:46:41,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350908384] [2021-10-28 09:46:41,392 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:46:41,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:46:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:46:41,393 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:41,412 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-10-28 09:46:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:46:41,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-10-28 09:46:41,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:41,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 27 transitions. [2021-10-28 09:46:41,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 09:46:41,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 09:46:41,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-10-28 09:46:41,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:41,415 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 09:46:41,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-10-28 09:46:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 09:46:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-28 09:46:41,418 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 09:46:41,418 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-28 09:46:41,418 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:46:41,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-28 09:46:41,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:41,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:41,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:41,419 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:41,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:46:41,420 INFO L791 eck$LassoCheckResult]: Stem: 255#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 256#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 259#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 260#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 274#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 272#L73 assume !q1_#t~switch20; 257#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 258#L18-3 [2021-10-28 09:46:41,420 INFO L793 eck$LassoCheckResult]: Loop: 258#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 269#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 270#L23 assume !(bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size); 264#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 271#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 268#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 258#L18-3 [2021-10-28 09:46:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1807321784, now seen corresponding path program 2 times [2021-10-28 09:46:41,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302001535] [2021-10-28 09:46:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:41,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:41,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302001535] [2021-10-28 09:46:41,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302001535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:41,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:41,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:46:41,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95338184] [2021-10-28 09:46:41,485 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:46:41,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,486 INFO L85 PathProgramCache]: Analyzing trace with hash -884895266, now seen corresponding path program 1 times [2021-10-28 09:46:41,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917395482] [2021-10-28 09:46:41,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:41,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:41,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917395482] [2021-10-28 09:46:41,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917395482] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:41,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:41,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:46:41,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329554464] [2021-10-28 09:46:41,514 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:46:41,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:41,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:46:41,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:46:41,517 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:41,538 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-10-28 09:46:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:46:41,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-10-28 09:46:41,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:41,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 27 transitions. [2021-10-28 09:46:41,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 09:46:41,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-28 09:46:41,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-28 09:46:41,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:41,541 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-28 09:46:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-28 09:46:41,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-28 09:46:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-28 09:46:41,545 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-28 09:46:41,545 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-28 09:46:41,545 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:46:41,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-10-28 09:46:41,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:41,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:41,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:41,547 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:41,547 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:41,548 INFO L791 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 304#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 307#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 308#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 322#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 320#L73 assume !q1_#t~switch20; 305#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 306#L18-3 [2021-10-28 09:46:41,548 INFO L793 eck$LassoCheckResult]: Loop: 306#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 317#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 318#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 311#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 312#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 319#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 316#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 306#L18-3 [2021-10-28 09:46:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1807321784, now seen corresponding path program 3 times [2021-10-28 09:46:41,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578616737] [2021-10-28 09:46:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:41,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:41,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578616737] [2021-10-28 09:46:41,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578616737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:41,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:41,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:46:41,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044492129] [2021-10-28 09:46:41,595 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:46:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 1 times [2021-10-28 09:46:41,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659724977] [2021-10-28 09:46:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:41,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:41,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:41,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:41,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:46:41,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:46:41,897 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:41,913 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2021-10-28 09:46:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:46:41,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2021-10-28 09:46:41,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:41,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 25 transitions. [2021-10-28 09:46:41,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-10-28 09:46:41,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 09:46:41,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-10-28 09:46:41,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:41,918 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 09:46:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-10-28 09:46:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 09:46:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-10-28 09:46:41,920 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 09:46:41,921 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 09:46:41,921 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:46:41,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-10-28 09:46:41,921 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:41,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:41,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:41,922 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:41,922 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:46:41,922 INFO L791 eck$LassoCheckResult]: Stem: 349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 350#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 353#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 354#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 368#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 366#L73 assume q1_#t~switch20;q1_~i~1 := 0; 367#L74-3 assume !(q1_~i~1 < q1_~N~0); 361#L74-4 q1_~i~1 := 0; 356#L76-3 [2021-10-28 09:46:41,923 INFO L793 eck$LassoCheckResult]: Loop: 356#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 355#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 356#L76-3 [2021-10-28 09:46:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,923 INFO L85 PathProgramCache]: Analyzing trace with hash 192371872, now seen corresponding path program 1 times [2021-10-28 09:46:41,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777341234] [2021-10-28 09:46:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:41,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:41,995 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:41,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:41,996 INFO L85 PathProgramCache]: Analyzing trace with hash 3139, now seen corresponding path program 1 times [2021-10-28 09:46:41,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:41,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660208939] [2021-10-28 09:46:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:41,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:42,001 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:42,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137891951] [2021-10-28 09:46:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:42,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:42,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:42,004 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:42,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-28 09:46:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:42,059 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:42,073 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash 185777442, now seen corresponding path program 1 times [2021-10-28 09:46:42,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:42,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653722487] [2021-10-28 09:46:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:42,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:42,083 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:42,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751541094] [2021-10-28 09:46:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:42,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:42,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:42,087 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:42,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 09:46:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:42,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:46:42,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:42,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:42,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653722487] [2021-10-28 09:46:42,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:46:42,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751541094] [2021-10-28 09:46:42,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751541094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:42,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:42,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:46:42,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651894327] [2021-10-28 09:46:42,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:42,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:42,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:46:42,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:46:42,557 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 09:46:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:42,639 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-10-28 09:46:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:46:42,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-10-28 09:46:42,647 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 23 [2021-10-28 09:46:42,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 51 transitions. [2021-10-28 09:46:42,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2021-10-28 09:46:42,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-28 09:46:42,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2021-10-28 09:46:42,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:42,650 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-10-28 09:46:42,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2021-10-28 09:46:42,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 22. [2021-10-28 09:46:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-28 09:46:42,658 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-28 09:46:42,661 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-28 09:46:42,662 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:46:42,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-10-28 09:46:42,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:42,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:42,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:42,664 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:42,664 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:42,664 INFO L791 eck$LassoCheckResult]: Stem: 451#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 452#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 455#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 456#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 471#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 469#L73 assume q1_#t~switch20;q1_~i~1 := 0; 470#L74-3 assume !(q1_~i~1 < q1_~N~0); 463#L74-4 q1_~i~1 := 0; 464#L76-3 assume !(q1_~i~1 < q1_~N~0); 453#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 454#L18-3 [2021-10-28 09:46:42,665 INFO L793 eck$LassoCheckResult]: Loop: 454#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 467#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 468#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 459#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 460#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 466#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 465#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 454#L18-3 [2021-10-28 09:46:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:42,666 INFO L85 PathProgramCache]: Analyzing trace with hash 185777387, now seen corresponding path program 1 times [2021-10-28 09:46:42,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:42,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731710960] [2021-10-28 09:46:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:42,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:42,687 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:42,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:42,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 2 times [2021-10-28 09:46:42,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:42,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831512455] [2021-10-28 09:46:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:42,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:42,751 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:42,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1443775097, now seen corresponding path program 1 times [2021-10-28 09:46:42,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:42,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192985142] [2021-10-28 09:46:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:42,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:46:42,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:42,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192985142] [2021-10-28 09:46:42,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192985142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:42,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:42,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:46:42,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123613122] [2021-10-28 09:46:43,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:43,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:46:43,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:46:43,095 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:43,178 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2021-10-28 09:46:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:46:43,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2021-10-28 09:46:43,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:43,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 27 transitions. [2021-10-28 09:46:43,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 09:46:43,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 09:46:43,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 27 transitions. [2021-10-28 09:46:43,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:43,182 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-28 09:46:43,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 27 transitions. [2021-10-28 09:46:43,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-10-28 09:46:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-28 09:46:43,184 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-28 09:46:43,184 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-28 09:46:43,185 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:46:43,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 25 transitions. [2021-10-28 09:46:43,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:43,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:43,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:43,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:43,186 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:46:43,186 INFO L791 eck$LassoCheckResult]: Stem: 514#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 515#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 518#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 519#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 534#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 532#L73 assume q1_#t~switch20;q1_~i~1 := 0; 533#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 524#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 525#L74-3 assume !(q1_~i~1 < q1_~N~0); 526#L74-4 q1_~i~1 := 0; 527#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 520#L76-2 [2021-10-28 09:46:43,186 INFO L793 eck$LassoCheckResult]: Loop: 520#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 521#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 520#L76-2 [2021-10-28 09:46:43,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1465845666, now seen corresponding path program 1 times [2021-10-28 09:46:43,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:43,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946761293] [2021-10-28 09:46:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:43,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:43,208 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:43,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [743117039] [2021-10-28 09:46:43,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:43,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:43,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:43,215 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:43,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 09:46:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:43,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:43,330 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:43,331 INFO L85 PathProgramCache]: Analyzing trace with hash 3199, now seen corresponding path program 2 times [2021-10-28 09:46:43,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:43,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206872539] [2021-10-28 09:46:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:43,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:43,336 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:43,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33409631] [2021-10-28 09:46:43,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:46:43,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:43,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:43,339 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:43,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 09:46:43,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:46:43,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:46:43,404 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:43,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash -71585824, now seen corresponding path program 1 times [2021-10-28 09:46:43,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:43,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075698622] [2021-10-28 09:46:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:43,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:43,441 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:43,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268202807] [2021-10-28 09:46:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:43,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:43,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:43,445 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:43,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-28 09:46:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:43,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:46:43,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:43,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:43,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075698622] [2021-10-28 09:46:43,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:46:43,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268202807] [2021-10-28 09:46:43,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268202807] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:46:43,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:46:43,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 09:46:43,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615296088] [2021-10-28 09:46:43,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:43,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:46:43,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:46:43,926 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. cyclomatic complexity: 7 Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:44,048 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-10-28 09:46:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:46:44,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 57 transitions. [2021-10-28 09:46:44,050 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 23 [2021-10-28 09:46:44,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 57 transitions. [2021-10-28 09:46:44,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-28 09:46:44,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-28 09:46:44,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 57 transitions. [2021-10-28 09:46:44,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:46:44,059 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 57 transitions. [2021-10-28 09:46:44,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 57 transitions. [2021-10-28 09:46:44,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2021-10-28 09:46:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-10-28 09:46:44,066 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-28 09:46:44,066 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-10-28 09:46:44,066 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 09:46:44,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2021-10-28 09:46:44,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-28 09:46:44,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:44,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:44,070 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:44,072 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:46:44,072 INFO L791 eck$LassoCheckResult]: Stem: 636#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 637#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 640#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 641#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 657#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 655#L73 assume q1_#t~switch20;q1_~i~1 := 0; 656#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 646#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 647#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 658#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 662#L74-3 assume !(q1_~i~1 < q1_~N~0); 661#L74-4 q1_~i~1 := 0; 650#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 642#L76-2 [2021-10-28 09:46:44,073 INFO L793 eck$LassoCheckResult]: Loop: 642#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 643#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 642#L76-2 [2021-10-28 09:46:44,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -69873632, now seen corresponding path program 2 times [2021-10-28 09:46:44,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:44,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633665921] [2021-10-28 09:46:44,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:44,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:44,085 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:44,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630314627] [2021-10-28 09:46:44,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:46:44,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:44,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:44,094 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:44,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 09:46:44,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:46:44,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:46:44,189 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:44,223 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 3199, now seen corresponding path program 3 times [2021-10-28 09:46:44,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:44,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798971397] [2021-10-28 09:46:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:44,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:44,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:44,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280661349] [2021-10-28 09:46:44,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:46:44,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:44,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:44,235 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:44,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-28 09:46:44,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-28 09:46:44,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:46:44,301 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:44,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:44,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:44,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1570918622, now seen corresponding path program 2 times [2021-10-28 09:46:44,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:44,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079862345] [2021-10-28 09:46:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:44,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:44,323 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:44,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854444188] [2021-10-28 09:46:44,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:46:44,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:44,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:44,326 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:44,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 09:46:44,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:46:44,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:46:44,419 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:44,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:47,589 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:47,589 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:47,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:47,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:47,590 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:46:47,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:47,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:47,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:47,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration9_Lasso [2021-10-28 09:46:47,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:47,590 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:47,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:47,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:47,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:47,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:47,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:48,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:50,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:46:50,084 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:46:50,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,098 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:46:50,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:50,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,151 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:46:50,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:50,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,201 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:46:50,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:46:50,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:46:50,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:46:50,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 09:46:50,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,267 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:46:50,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:50,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,373 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:46:50,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:50,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,418 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:46:50,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 09:46:50,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,467 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:46:50,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 09:46:50,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,537 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:46:50,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 09:46:50,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,585 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:46:50,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:46:50,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:46:50,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:46:50,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:46:50,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:46:50,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 09:46:50,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:50,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:50,624 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:50,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:46:50,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:46:50,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:46:50,638 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 09:46:50,638 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2021-10-28 09:46:50,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:46:50,685 INFO L401 nArgumentSynthesizer]: We have 36 Motzkin's Theorem applications. [2021-10-28 09:46:50,685 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-28 09:46:50,833 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:46:51,000 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-10-28 09:46:51,000 INFO L444 ModelExtractionUtils]: 39 out of 57 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-28 09:46:51,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:51,002 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:51,003 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:46:51,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:46:51,032 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2021-10-28 09:46:51,032 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:46:51,032 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_q1_~N~0, ULTIMATE.start_q1_~i~1) = 1*ULTIMATE.start_q1_~N~0 - 1*ULTIMATE.start_q1_~i~1 Supporting invariants [] [2021-10-28 09:46:51,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 09:46:51,110 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-10-28 09:46:51,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:51,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:46:51,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:51,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:46:51,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:51,244 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:46:51,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:51,270 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 48 transitions. Complement of second has 4 states. [2021-10-28 09:46:51,277 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 09:46:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:51,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2021-10-28 09:46:51,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 13 letters. Loop has 2 letters. [2021-10-28 09:46:51,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:51,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-28 09:46:51,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:51,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 13 letters. Loop has 4 letters. [2021-10-28 09:46:51,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:46:51,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-10-28 09:46:51,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 09:46:51,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 29 states and 35 transitions. [2021-10-28 09:46:51,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-28 09:46:51,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-10-28 09:46:51,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-28 09:46:51,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:46:51,281 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 09:46:51,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-28 09:46:51,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-28 09:46:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:51,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-10-28 09:46:51,284 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-28 09:46:51,284 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-28 09:46:51,284 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 09:46:51,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 34 transitions. [2021-10-28 09:46:51,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 09:46:51,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:51,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:51,286 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:51,286 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:51,286 INFO L791 eck$LassoCheckResult]: Stem: 814#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 815#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 818#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 819#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 836#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 834#L73 assume q1_#t~switch20;q1_~i~1 := 0; 835#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 837#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 838#L74-3 assume !(q1_~i~1 < q1_~N~0); 828#L74-4 q1_~i~1 := 0; 829#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 820#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 821#L76-3 assume !(q1_~i~1 < q1_~N~0); 816#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 817#L18-3 [2021-10-28 09:46:51,287 INFO L793 eck$LassoCheckResult]: Loop: 817#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 831#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 832#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 824#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 825#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 833#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 830#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 817#L18-3 [2021-10-28 09:46:51,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2075806767, now seen corresponding path program 1 times [2021-10-28 09:46:51,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:51,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119896756] [2021-10-28 09:46:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:51,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:51,296 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:51,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422339771] [2021-10-28 09:46:51,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:51,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:51,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:51,298 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:51,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 09:46:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:51,397 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:51,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:51,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 3 times [2021-10-28 09:46:51,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:51,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649135136] [2021-10-28 09:46:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:51,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:51,438 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:51,445 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -548718141, now seen corresponding path program 1 times [2021-10-28 09:46:51,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:51,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86683731] [2021-10-28 09:46:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:51,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:51,454 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:51,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432536281] [2021-10-28 09:46:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:51,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:51,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:51,457 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:51,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-28 09:46:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:51,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:46:51,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:46:51,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:46:51,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:51,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86683731] [2021-10-28 09:46:51,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:46:51,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432536281] [2021-10-28 09:46:51,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432536281] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:46:51,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:46:51,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 09:46:51,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302261815] [2021-10-28 09:46:51,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:46:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:46:51,861 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. cyclomatic complexity: 9 Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:51,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:51,976 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-10-28 09:46:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:46:51,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2021-10-28 09:46:51,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 09:46:51,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 28 states and 33 transitions. [2021-10-28 09:46:51,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 09:46:51,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-28 09:46:51,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2021-10-28 09:46:51,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:46:51,979 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-28 09:46:51,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2021-10-28 09:46:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-28 09:46:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.16) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-10-28 09:46:51,984 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-10-28 09:46:51,984 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-10-28 09:46:51,984 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 09:46:51,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2021-10-28 09:46:51,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 09:46:51,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:46:51,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:46:51,987 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:51,987 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:51,988 INFO L791 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 955#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 958#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 959#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 976#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 974#L73 assume q1_#t~switch20;q1_~i~1 := 0; 975#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 966#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 967#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 977#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 978#L74-3 assume !(q1_~i~1 < q1_~N~0); 968#L74-4 q1_~i~1 := 0; 969#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 960#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 961#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 962#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 963#L76-3 assume !(q1_~i~1 < q1_~N~0); 956#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 957#L18-3 [2021-10-28 09:46:51,988 INFO L793 eck$LassoCheckResult]: Loop: 957#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 971#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 972#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 964#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 965#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 973#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 970#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 957#L18-3 [2021-10-28 09:46:51,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1273080179, now seen corresponding path program 2 times [2021-10-28 09:46:51,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:51,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159129021] [2021-10-28 09:46:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:51,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:51,999 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:52,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658919117] [2021-10-28 09:46:52,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:46:52,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:52,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:52,007 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:52,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-28 09:46:52,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:46:52,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:46:52,123 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:52,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:52,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:52,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1669532239, now seen corresponding path program 4 times [2021-10-28 09:46:52,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:52,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745221189] [2021-10-28 09:46:52,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:52,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:52,181 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:52,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1247881215, now seen corresponding path program 2 times [2021-10-28 09:46:52,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:52,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705960680] [2021-10-28 09:46:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:52,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:52,206 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:46:52,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040800712] [2021-10-28 09:46:52,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:46:52,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:46:52,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:52,209 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:46:52,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-28 09:46:52,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:46:52,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:46:52,338 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:52,387 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:53,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:46:57,848 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:46:57,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:46:57,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:46:57,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:46:57,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:46:57,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:46:57,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:46:57,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:46:57,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration11_Lasso [2021-10-28 09:46:57,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:46:57,849 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:46:57,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:57,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:57,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:57,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:46:59,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:00,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:47:00,449 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:47:00,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,460 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:47:00,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:00,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:00,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:00,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:00,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,530 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:47:00,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:00,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:00,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:00,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:00,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,567 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:47:00,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:00,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:00,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 09:47:00,602 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,603 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:47:00,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:00,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:00,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:00,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,641 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:47:00,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:00,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:00,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 09:47:00,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,678 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:47:00,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:00,691 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:00,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 09:47:00,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,718 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:47:00,720 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 09:47:00,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:00,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:00,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:00,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,757 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:47:00,758 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 09:47:00,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:00,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:00,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:00,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 09:47:00,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,789 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:47:00,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:00,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:00,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:00,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:00,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:00,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 09:47:00,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,843 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 09:47:00,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:00,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:00,855 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 09:47:00,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:00,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:00,866 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-28 09:47:00,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:00,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:47:00,931 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 09:47:00,931 INFO L444 ModelExtractionUtils]: 15 out of 37 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-10-28 09:47:00,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:00,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:00,932 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:00,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 09:47:00,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:47:00,942 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:47:00,942 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:47:00,942 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubblesort_~a~0, ULTIMATE.start_bubblesort_~size) = -1*ULTIMATE.start_bubblesort_~a~0 + 1*ULTIMATE.start_bubblesort_~size Supporting invariants [] [2021-10-28 09:47:00,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 09:47:01,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:01,134 INFO L297 tatePredicateManager]: 27 out of 27 supporting invariants were superfluous and have been removed [2021-10-28 09:47:01,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:01,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:47:01,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:01,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:47:01,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:47:01,304 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:47:01,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 29 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:01,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 29 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 39 transitions. Complement of second has 4 states. [2021-10-28 09:47:01,326 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 09:47:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2021-10-28 09:47:01,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 18 letters. Loop has 7 letters. [2021-10-28 09:47:01,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:47:01,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 25 letters. Loop has 7 letters. [2021-10-28 09:47:01,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:47:01,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 18 letters. Loop has 14 letters. [2021-10-28 09:47:01,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:47:01,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 39 transitions. [2021-10-28 09:47:01,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:01,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 31 states and 38 transitions. [2021-10-28 09:47:01,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:47:01,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 09:47:01,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-10-28 09:47:01,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:47:01,330 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 09:47:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-10-28 09:47:01,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2021-10-28 09:47:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:01,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-28 09:47:01,333 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-28 09:47:01,333 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-28 09:47:01,334 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 09:47:01,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2021-10-28 09:47:01,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:01,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:47:01,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:47:01,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:01,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:47:01,336 INFO L791 eck$LassoCheckResult]: Stem: 1214#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1215#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 1218#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 1219#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 1241#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 1239#L73 assume q1_#t~switch20;q1_~i~1 := 0; 1240#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1228#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1229#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1242#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1243#L74-3 assume !(q1_~i~1 < q1_~N~0); 1230#L74-4 q1_~i~1 := 0; 1231#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1220#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1221#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1222#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1223#L76-3 assume !(q1_~i~1 < q1_~N~0); 1216#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 1217#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1234#L20-3 [2021-10-28 09:47:01,336 INFO L793 eck$LassoCheckResult]: Loop: 1234#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1236#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1224#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1225#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1234#L20-3 [2021-10-28 09:47:01,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:01,336 INFO L85 PathProgramCache]: Analyzing trace with hash 810779970, now seen corresponding path program 1 times [2021-10-28 09:47:01,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:01,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889985256] [2021-10-28 09:47:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:01,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:01,345 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:01,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1039010617] [2021-10-28 09:47:01,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:01,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:01,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:01,348 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:01,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-28 09:47:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:01,448 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:01,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:01,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 3789515, now seen corresponding path program 1 times [2021-10-28 09:47:01,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:01,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945954581] [2021-10-28 09:47:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:01,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:01,482 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:01,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:01,488 INFO L85 PathProgramCache]: Analyzing trace with hash 618057612, now seen corresponding path program 1 times [2021-10-28 09:47:01,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:01,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750277647] [2021-10-28 09:47:01,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:01,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:01,496 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:01,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365626581] [2021-10-28 09:47:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:01,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:01,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:01,504 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:01,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-28 09:47:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:01,614 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:01,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:07,530 WARN L207 SmtUtils]: Spent 5.74 s on a formula simplification. DAG size of input: 264 DAG size of output: 220 [2021-10-28 09:47:09,772 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:47:09,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:47:09,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:47:09,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:47:09,773 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:47:09,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:09,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:47:09,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:47:09,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration12_Lasso [2021-10-28 09:47:09,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:47:09,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:47:09,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:09,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:10,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:11,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:11,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:11,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:47:11,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:47:11,989 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:47:11,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:11,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:11,997 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:11,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 09:47:11,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 09:47:12,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,033 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 09:47:12,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,066 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 09:47:12,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,120 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 09:47:12,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 09:47:12,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,153 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 09:47:12,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 09:47:12,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,189 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 09:47:12,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 09:47:12,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,228 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 09:47:12,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-28 09:47:12,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,264 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 09:47:12,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,298 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 09:47:12,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-28 09:47:12,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,335 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 09:47:12,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-28 09:47:12,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,379 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 09:47:12,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,460 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 09:47:12,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,515 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 09:47:12,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,551 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 09:47:12,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 09:47:12,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,584 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 09:47:12,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,616 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 09:47:12,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 09:47:12,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,655 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 09:47:12,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 09:47:12,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,701 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 09:47:12,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-28 09:47:12,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,734 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 09:47:12,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-28 09:47:12,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,769 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 09:47:12,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 09:47:12,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,830 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 09:47:12,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,870 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 09:47:12,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-10-28 09:47:12,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,906 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 09:47:12,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,941 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 09:47:12,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:12,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:12,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:12,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:12,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:12,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:12,975 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:12,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 09:47:12,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:12,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:12,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:12,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:12,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:12,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:12,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:12,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:13,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:13,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:13,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,013 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 09:47:13,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:13,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:13,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:13,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:13,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:13,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:13,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:13,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:13,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-28 09:47:13,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:13,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,047 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 09:47:13,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:13,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:13,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:13,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:13,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:13,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:13,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:13,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:13,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:13,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:13,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,090 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 09:47:13,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:13,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:13,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:47:13,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:13,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:13,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:13,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:47:13,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:47:13,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:13,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:13,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:13,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,124 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 09:47:13,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:13,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:13,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:47:13,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:13,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:13,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:47:13,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:13,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:47:13,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:13,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:13,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,169 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 09:47:13,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:47:13,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:47:13,179 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 09:47:13,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:47:13,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:47:13,197 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-28 09:47:13,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:47:13,218 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:47:13,243 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 09:47:13,243 INFO L444 ModelExtractionUtils]: 21 out of 40 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-28 09:47:13,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:47:13,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,250 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 09:47:13,251 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:47:13,267 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:47:13,268 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:47:13,268 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubblesort_~a~0, ULTIMATE.start_bubblesort_~b~0) = -2*ULTIMATE.start_bubblesort_~a~0 + 2*ULTIMATE.start_bubblesort_~b~0 + 1 Supporting invariants [] [2021-10-28 09:47:13,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:13,427 INFO L297 tatePredicateManager]: 27 out of 27 supporting invariants were superfluous and have been removed [2021-10-28 09:47:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:13,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:47:13,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:13,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:47:13,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:13,561 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:47:13,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:13,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 65 transitions. Complement of second has 7 states. [2021-10-28 09:47:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:47:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:13,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-10-28 09:47:13,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 19 letters. Loop has 4 letters. [2021-10-28 09:47:13,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:47:13,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 23 letters. Loop has 4 letters. [2021-10-28 09:47:13,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:47:13,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 19 letters. Loop has 8 letters. [2021-10-28 09:47:13,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:47:13,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. [2021-10-28 09:47:13,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:13,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 37 states and 46 transitions. [2021-10-28 09:47:13,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:47:13,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:47:13,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2021-10-28 09:47:13,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:47:13,605 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2021-10-28 09:47:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2021-10-28 09:47:13,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2021-10-28 09:47:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-10-28 09:47:13,608 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-10-28 09:47:13,608 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-10-28 09:47:13,608 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 09:47:13,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 36 transitions. [2021-10-28 09:47:13,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:13,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:47:13,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:47:13,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:13,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:47:13,610 INFO L791 eck$LassoCheckResult]: Stem: 1495#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1496#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 1499#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 1500#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 1522#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 1520#L73 assume q1_#t~switch20;q1_~i~1 := 0; 1521#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1509#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1510#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1523#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1524#L74-3 assume !(q1_~i~1 < q1_~N~0); 1511#L74-4 q1_~i~1 := 0; 1512#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1501#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1502#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1503#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1504#L76-3 assume !(q1_~i~1 < q1_~N~0); 1497#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 1498#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1518#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1519#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1507#L25 assume !(bubblesort_#t~mem9 > bubblesort_#t~mem10);havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10; 1508#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1516#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 1513#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 1514#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1515#L20-3 [2021-10-28 09:47:13,611 INFO L793 eck$LassoCheckResult]: Loop: 1515#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1517#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1505#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1506#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1515#L20-3 [2021-10-28 09:47:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash 31459128, now seen corresponding path program 1 times [2021-10-28 09:47:13,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:13,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564879409] [2021-10-28 09:47:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:13,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:13,620 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:13,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455412735] [2021-10-28 09:47:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:13,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:13,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:13,623 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:13,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-28 09:47:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:13,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:47:13,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:47:13,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:47:13,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564879409] [2021-10-28 09:47:13,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:47:13,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455412735] [2021-10-28 09:47:13,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455412735] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:47:13,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:47:13,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 09:47:13,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071539384] [2021-10-28 09:47:13,894 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:47:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:13,894 INFO L85 PathProgramCache]: Analyzing trace with hash 3789515, now seen corresponding path program 2 times [2021-10-28 09:47:13,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:13,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850588875] [2021-10-28 09:47:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:13,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:13,900 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:13,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:14,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:47:14,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:47:14,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:47:14,048 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. cyclomatic complexity: 10 Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:14,180 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2021-10-28 09:47:14,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:47:14,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 65 transitions. [2021-10-28 09:47:14,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:14,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 37 states and 44 transitions. [2021-10-28 09:47:14,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:47:14,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:47:14,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 44 transitions. [2021-10-28 09:47:14,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:47:14,183 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-28 09:47:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 44 transitions. [2021-10-28 09:47:14,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2021-10-28 09:47:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 33 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2021-10-28 09:47:14,186 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2021-10-28 09:47:14,186 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2021-10-28 09:47:14,186 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 09:47:14,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 40 transitions. [2021-10-28 09:47:14,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:14,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:47:14,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:47:14,188 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:14,188 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:47:14,189 INFO L791 eck$LassoCheckResult]: Stem: 1675#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1676#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 1679#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 1680#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 1703#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 1701#L73 assume q1_#t~switch20;q1_~i~1 := 0; 1702#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1704#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1705#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1689#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1690#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1708#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1707#L74-3 assume !(q1_~i~1 < q1_~N~0); 1691#L74-4 q1_~i~1 := 0; 1692#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1681#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1682#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1683#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1684#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1693#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1706#L76-3 assume !(q1_~i~1 < q1_~N~0); 1677#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 1678#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1699#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1700#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1687#L25 assume !(bubblesort_#t~mem9 > bubblesort_#t~mem10);havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10; 1688#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1697#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 1694#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 1695#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1696#L20-3 [2021-10-28 09:47:14,189 INFO L793 eck$LassoCheckResult]: Loop: 1696#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1698#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1685#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1686#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1696#L20-3 [2021-10-28 09:47:14,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:14,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1103015548, now seen corresponding path program 2 times [2021-10-28 09:47:14,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:14,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829930221] [2021-10-28 09:47:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:14,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:14,199 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:14,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029613388] [2021-10-28 09:47:14,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:47:14,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:14,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:14,212 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:14,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-28 09:47:14,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:47:14,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:47:14,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:47:14,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:14,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 09:47:14,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:47:14,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829930221] [2021-10-28 09:47:14,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:47:14,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029613388] [2021-10-28 09:47:14,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029613388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:47:14,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:47:14,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 09:47:14,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855278960] [2021-10-28 09:47:14,550 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:47:14,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:14,550 INFO L85 PathProgramCache]: Analyzing trace with hash 3789515, now seen corresponding path program 3 times [2021-10-28 09:47:14,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:14,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432598667] [2021-10-28 09:47:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:14,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:14,556 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:14,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:14,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:47:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:47:14,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:47:14,701 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. cyclomatic complexity: 10 Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:14,849 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-10-28 09:47:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:47:14,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 57 transitions. [2021-10-28 09:47:14,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:14,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 57 transitions. [2021-10-28 09:47:14,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:47:14,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:47:14,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 57 transitions. [2021-10-28 09:47:14,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:47:14,853 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 57 transitions. [2021-10-28 09:47:14,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 57 transitions. [2021-10-28 09:47:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2021-10-28 09:47:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 37 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2021-10-28 09:47:14,856 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2021-10-28 09:47:14,856 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2021-10-28 09:47:14,857 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 09:47:14,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 45 transitions. [2021-10-28 09:47:14,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:14,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:47:14,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:47:14,859 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:14,859 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:47:14,859 INFO L791 eck$LassoCheckResult]: Stem: 1867#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1868#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 1871#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 1872#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 1895#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 1893#L73 assume q1_#t~switch20;q1_~i~1 := 0; 1894#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1881#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1882#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1896#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1901#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 1900#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 1899#L74-3 assume !(q1_~i~1 < q1_~N~0); 1883#L74-4 q1_~i~1 := 0; 1884#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1873#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1874#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1875#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1876#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 1898#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 1897#L76-3 assume !(q1_~i~1 < q1_~N~0); 1869#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 1870#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1891#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1904#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1879#L25 assume !(bubblesort_#t~mem9 > bubblesort_#t~mem10);havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10; 1880#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1889#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1890#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1892#L25 assume !(bubblesort_#t~mem9 > bubblesort_#t~mem10);havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10; 1903#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1902#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 1885#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 1886#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 1887#L20-3 [2021-10-28 09:47:14,860 INFO L793 eck$LassoCheckResult]: Loop: 1887#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 1888#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1877#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 1878#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 1887#L20-3 [2021-10-28 09:47:14,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 545700084, now seen corresponding path program 3 times [2021-10-28 09:47:14,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:14,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190845337] [2021-10-28 09:47:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:14,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:14,870 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:14,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492117325] [2021-10-28 09:47:14,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:47:14,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:14,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:14,872 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:14,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 09:47:15,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 09:47:15,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:47:15,083 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:15,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash 3789515, now seen corresponding path program 4 times [2021-10-28 09:47:15,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:15,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596354321] [2021-10-28 09:47:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:15,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:15,141 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:15,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:15,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1677403586, now seen corresponding path program 1 times [2021-10-28 09:47:15,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:15,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905417273] [2021-10-28 09:47:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:15,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:15,155 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:15,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043523609] [2021-10-28 09:47:15,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:15,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:15,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:15,163 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:15,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-28 09:47:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:15,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 09:47:15,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:16,168 INFO L354 Elim1Store]: treesize reduction 96, result has 6.8 percent of original size [2021-10-28 09:47:16,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 36 [2021-10-28 09:47:16,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:47:16,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:47:16,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905417273] [2021-10-28 09:47:16,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:47:16,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043523609] [2021-10-28 09:47:16,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043523609] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:47:16,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:47:16,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-10-28 09:47:16,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403933504] [2021-10-28 09:47:16,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:47:16,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:47:16,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:47:16,356 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. cyclomatic complexity: 11 Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:17,151 INFO L93 Difference]: Finished difference Result 148 states and 182 transitions. [2021-10-28 09:47:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:47:17,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 182 transitions. [2021-10-28 09:47:17,153 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20 [2021-10-28 09:47:17,155 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 182 transitions. [2021-10-28 09:47:17,155 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-28 09:47:17,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-10-28 09:47:17,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 182 transitions. [2021-10-28 09:47:17,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:47:17,156 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 182 transitions. [2021-10-28 09:47:17,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 182 transitions. [2021-10-28 09:47:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 77. [2021-10-28 09:47:17,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 76 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 94 transitions. [2021-10-28 09:47:17,163 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2021-10-28 09:47:17,163 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2021-10-28 09:47:17,164 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 09:47:17,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 94 transitions. [2021-10-28 09:47:17,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:17,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:47:17,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:47:17,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:17,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:47:17,166 INFO L791 eck$LassoCheckResult]: Stem: 2213#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 2214#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 2217#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 2218#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 2245#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 2243#L73 assume q1_#t~switch20;q1_~i~1 := 0; 2244#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 2246#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 2254#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 2228#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 2229#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 2247#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 2253#L74-3 assume !(q1_~i~1 < q1_~N~0); 2230#L74-4 q1_~i~1 := 0; 2231#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 2219#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 2220#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 2221#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 2222#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 2233#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 2232#L76-3 assume !(q1_~i~1 < q1_~N~0); 2215#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 2216#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 2236#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 2269#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2225#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2226#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 2270#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 2256#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2260#L25 assume !(bubblesort_#t~mem9 > bubblesort_#t~mem10);havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10; 2259#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 2255#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 2234#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 2235#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 2238#L20-3 [2021-10-28 09:47:17,167 INFO L793 eck$LassoCheckResult]: Loop: 2238#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 2239#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2289#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2224#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 2238#L20-3 [2021-10-28 09:47:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:17,167 INFO L85 PathProgramCache]: Analyzing trace with hash -134358286, now seen corresponding path program 2 times [2021-10-28 09:47:17,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:17,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317774957] [2021-10-28 09:47:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:17,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:17,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:17,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818021374] [2021-10-28 09:47:17,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:47:17,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:17,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:17,179 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:17,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-28 09:47:17,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:47:17,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:47:17,454 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:17,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:17,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:17,545 INFO L85 PathProgramCache]: Analyzing trace with hash 3789515, now seen corresponding path program 5 times [2021-10-28 09:47:17,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:17,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915522519] [2021-10-28 09:47:17,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:17,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:17,551 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:17,555 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:17,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1090597572, now seen corresponding path program 3 times [2021-10-28 09:47:17,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:17,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739445243] [2021-10-28 09:47:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:17,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:17,566 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:17,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081773801] [2021-10-28 09:47:17,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:47:17,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:17,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:17,583 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:17,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-28 09:47:17,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 09:47:17,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:47:17,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:47:17,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:18,021 INFO L354 Elim1Store]: treesize reduction 57, result has 17.4 percent of original size [2021-10-28 09:47:18,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 38 [2021-10-28 09:47:18,297 INFO L354 Elim1Store]: treesize reduction 96, result has 6.8 percent of original size [2021-10-28 09:47:18,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 24 [2021-10-28 09:47:18,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-28 09:47:18,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:47:18,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739445243] [2021-10-28 09:47:18,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 09:47:18,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081773801] [2021-10-28 09:47:18,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081773801] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:47:18,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:47:18,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 09:47:18,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647257052] [2021-10-28 09:47:18,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:47:18,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:47:18,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:47:18,477 INFO L87 Difference]: Start difference. First operand 77 states and 94 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:18,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:18,706 INFO L93 Difference]: Finished difference Result 132 states and 162 transitions. [2021-10-28 09:47:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:47:18,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 162 transitions. [2021-10-28 09:47:18,708 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 09:47:18,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 132 states and 162 transitions. [2021-10-28 09:47:18,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-28 09:47:18,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-28 09:47:18,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 162 transitions. [2021-10-28 09:47:18,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:47:18,712 INFO L681 BuchiCegarLoop]: Abstraction has 132 states and 162 transitions. [2021-10-28 09:47:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 162 transitions. [2021-10-28 09:47:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 92. [2021-10-28 09:47:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.2391304347826086) internal successors, (114), 91 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2021-10-28 09:47:18,719 INFO L704 BuchiCegarLoop]: Abstraction has 92 states and 114 transitions. [2021-10-28 09:47:18,719 INFO L587 BuchiCegarLoop]: Abstraction has 92 states and 114 transitions. [2021-10-28 09:47:18,719 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-28 09:47:18,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 114 transitions. [2021-10-28 09:47:18,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:47:18,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:47:18,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:47:18,722 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:18,722 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:47:18,731 INFO L791 eck$LassoCheckResult]: Stem: 2549#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 2550#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_~argc, main_~#argv.base, main_~#argv.offset;main_~argc := main_#in~argc;main_~#argv.base, main_~#argv.offset := main_#in~argv.base, main_#in~argv.offset;q1_#in~argc, q1_#in~argv.base, q1_#in~argv.offset := main_~argc, main_~#argv.base, main_~#argv.offset;havoc q1_#t~nondet19, q1_#t~switch20, q1_#t~pre21, q1_#t~pre22, q1_#t~pre23, q1_#t~nondet25, q1_#t~mem26, q1_#t~mem27, q1_#t~post24, q1_~r~0, q1_~temp~0, q1_~argc, q1_~argv.base, q1_~argv.offset, q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset, q1_~i~1;q1_~argc := q1_#in~argc;q1_~argv.base, q1_~argv.offset := q1_#in~argv.base, q1_#in~argv.offset; 2553#L56 assume !(q1_~argc < 2);q1_~N~0 := q1_#t~nondet19;havoc q1_#t~nondet19;call q1_~#a~1.base, q1_~#a~1.offset := #Ultimate.allocOnStack(4 * q1_~N~0);havoc q1_~i~1;q1_#t~switch20 := false; 2554#L65 assume !q1_#t~switch20;q1_#t~switch20 := q1_#t~switch20; 2585#L69 assume !q1_#t~switch20;q1_#t~switch20 := true; 2583#L73 assume q1_#t~switch20;q1_~i~1 := 0; 2584#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 2563#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 2564#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 2599#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 2586#L74-3 assume !!(q1_~i~1 < q1_~N~0);call write~int(q1_~i~1, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4); 2587#L74-2 q1_#t~pre23 := 1 + q1_~i~1;q1_~i~1 := 1 + q1_~i~1;havoc q1_#t~pre23; 2596#L74-3 assume !(q1_~i~1 < q1_~N~0); 2565#L74-4 q1_~i~1 := 0; 2566#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 2555#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 2556#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 2557#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 2558#L76-3 assume !!(q1_~i~1 < q1_~N~0);q1_~r~0 := q1_~i~1 + (if q1_#t~nondet25 < 0 && 0 != q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) then (if q1_~N~0 - q1_~i~1 < 0 then q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) + (q1_~N~0 - q1_~i~1) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1) - (q1_~N~0 - q1_~i~1)) else q1_#t~nondet25 % (q1_~N~0 - q1_~i~1));havoc q1_#t~nondet25;call q1_#t~mem26 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);q1_~temp~0 := q1_#t~mem26;havoc q1_#t~mem26;call q1_#t~mem27 := read~int(q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4);call write~int(q1_#t~mem27, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~i~1, 4);havoc q1_#t~mem27;call write~int(q1_~temp~0, q1_~#a~1.base, q1_~#a~1.offset + 4 * q1_~r~0, 4); 2625#L76-2 q1_#t~post24 := q1_~i~1;q1_~i~1 := 1 + q1_#t~post24;havoc q1_#t~post24; 2588#L76-3 assume !(q1_~i~1 < q1_~N~0); 2589#L63 havoc q1_#t~switch20;bubblesort_#in~size, bubblesort_#in~item.base, bubblesort_#in~item.offset := q1_~N~0, q1_~#a~1.base, q1_~#a~1.offset;havoc bubblesort_#t~mem9, bubblesort_#t~mem10, bubblesort_#t~mem11, bubblesort_#t~mem12, bubblesort_#t~pre8, bubblesort_#t~pre7, bubblesort_~size, bubblesort_~item.base, bubblesort_~item.offset, bubblesort_~a~0, bubblesort_~b~0, bubblesort_~t~0;bubblesort_~size := bubblesort_#in~size;bubblesort_~item.base, bubblesort_~item.offset := bubblesort_#in~item.base, bubblesort_#in~item.offset;havoc bubblesort_~a~0;havoc bubblesort_~b~0;havoc bubblesort_~t~0;bubblesort_~a~0 := 1; 2573#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 2574#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 2638#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2637#L25 assume !(bubblesort_#t~mem9 > bubblesort_#t~mem10);havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10; 2632#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 2627#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 2626#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2617#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2616#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 2604#L20-3 assume !(bubblesort_~b~0 >= bubblesort_~a~0); 2605#L18-2 bubblesort_#t~pre7 := 1 + bubblesort_~a~0;bubblesort_~a~0 := 1 + bubblesort_~a~0;havoc bubblesort_#t~pre7; 2600#L18-3 assume !!(bubblesort_~a~0 < bubblesort_~size);bubblesort_~b~0 := bubblesort_~size - 1; 2579#L20-3 [2021-10-28 09:47:18,731 INFO L793 eck$LassoCheckResult]: Loop: 2579#L20-3 assume !!(bubblesort_~b~0 >= bubblesort_~a~0); 2581#L23 assume bubblesort_~b~0 - 1 < bubblesort_~size && bubblesort_~b~0 < bubblesort_~size;call bubblesort_#t~mem9 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);call bubblesort_#t~mem10 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2582#L25 assume bubblesort_#t~mem9 > bubblesort_#t~mem10;havoc bubblesort_#t~mem9;havoc bubblesort_#t~mem10;call bubblesort_#t~mem11 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);bubblesort_~t~0 := bubblesort_#t~mem11;havoc bubblesort_#t~mem11;call bubblesort_#t~mem12 := read~int(bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4);call write~int(bubblesort_#t~mem12, bubblesort_~item.base, bubblesort_~item.offset + 4 * (bubblesort_~b~0 - 1), 4);havoc bubblesort_#t~mem12;call write~int(bubblesort_~t~0, bubblesort_~item.base, bubblesort_~item.offset + 4 * bubblesort_~b~0, 4); 2560#L20-2 bubblesort_#t~pre8 := bubblesort_~b~0 - 1;bubblesort_~b~0 := bubblesort_~b~0 - 1;havoc bubblesort_#t~pre8; 2579#L20-3 [2021-10-28 09:47:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:18,734 INFO L85 PathProgramCache]: Analyzing trace with hash 543853042, now seen corresponding path program 4 times [2021-10-28 09:47:18,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:18,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357025981] [2021-10-28 09:47:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:18,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:18,752 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:18,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307191583] [2021-10-28 09:47:18,753 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:47:18,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:18,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:18,762 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:18,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-28 09:47:19,014 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:47:19,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:47:19,015 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:19,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:19,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 3789515, now seen corresponding path program 6 times [2021-10-28 09:47:19,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:19,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685947492] [2021-10-28 09:47:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:19,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:19,082 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:19,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:19,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:19,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1937505340, now seen corresponding path program 5 times [2021-10-28 09:47:19,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:47:19,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300505019] [2021-10-28 09:47:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:19,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:47:19,105 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:47:19,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464954651] [2021-10-28 09:47:19,107 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:47:19,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:47:19,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:19,110 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:47:19,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-10-28 09:47:19,395 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-28 09:47:19,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 09:47:19,396 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:47:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:47:19,446 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:47:41,453 WARN L207 SmtUtils]: Spent 21.89 s on a formula simplification. DAG size of input: 392 DAG size of output: 309 [2021-10-28 09:48:58,023 WARN L207 SmtUtils]: Spent 17.25 s on a formula simplification. DAG size of input: 295 DAG size of output: 219 [2021-10-28 09:48:58,028 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:48:58,028 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:48:58,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:48:58,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:48:58,029 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:48:58,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:58,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:48:58,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:48:58,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubble_sort-1.c_Iteration17_Lasso [2021-10-28 09:48:58,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:48:58,029 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:48:58,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:58,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:58,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:58,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:48:58,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:01,414 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 09:49:01,419 INFO L168 Benchmark]: Toolchain (without parser) took 147039.80 ms. Allocated memory was 88.1 MB in the beginning and 176.2 MB in the end (delta: 88.1 MB). Free memory was 52.9 MB in the beginning and 100.7 MB in the end (delta: -47.7 MB). Peak memory consumption was 122.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:01,420 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:01,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.48 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 52.7 MB in the beginning and 95.4 MB in the end (delta: -42.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:01,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.33 ms. Allocated memory is still 121.6 MB. Free memory was 95.4 MB in the beginning and 94.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:01,421 INFO L168 Benchmark]: Boogie Preprocessor took 60.26 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 92.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:01,422 INFO L168 Benchmark]: RCFGBuilder took 600.84 ms. Allocated memory is still 121.6 MB. Free memory was 92.6 MB in the beginning and 79.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:01,422 INFO L168 Benchmark]: BuchiAutomizer took 145833.09 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 79.3 MB in the beginning and 100.7 MB in the end (delta: -21.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:01,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 59.4 MB in the beginning and 59.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.48 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 52.7 MB in the beginning and 95.4 MB in the end (delta: -42.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.33 ms. Allocated memory is still 121.6 MB. Free memory was 95.4 MB in the beginning and 94.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.26 ms. Allocated memory is still 121.6 MB. Free memory was 94.0 MB in the beginning and 92.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 600.84 ms. Allocated memory is still 121.6 MB. Free memory was 92.6 MB in the beginning and 79.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 145833.09 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 79.3 MB in the beginning and 100.7 MB in the end (delta: -21.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 09:49:01,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:01,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:01,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:02,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-10-28 09:49:02,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-28 09:49:02,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2021-10-28 09:49:02,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-10-28 09:49:03,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-28 09:49:03,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-10-28 09:49:03,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2021-10-28 09:49:03,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:04,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-10-28 09:49:04,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:04,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:04,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-28 09:49:04,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-28 09:49:05,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-28 09:49:05,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:05,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-28 09:49:05,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:06,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0efbf30-2e85-4343-8ca9-4ddcfe44d41d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...