./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/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-e943c26 [2021-10-21 19:32:35,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:32:35,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:32:35,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:32:35,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:32:35,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:32:35,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:32:35,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:32:35,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:32:35,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:32:35,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:32:35,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:32:35,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:32:35,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:32:35,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:32:35,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:32:35,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:32:35,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:32:35,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:32:35,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:32:35,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:32:35,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:32:35,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:32:35,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:32:35,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:32:35,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:32:35,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:32:35,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:32:35,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:32:35,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:32:35,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:32:35,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:32:35,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:32:35,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:32:35,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:32:35,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:32:35,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:32:35,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:32:35,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:32:35,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:32:35,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:32:35,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:32:35,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:32:35,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:32:35,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:32:35,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:32:35,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:32:35,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:32:35,779 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:32:35,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:32:35,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:32:35,780 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:32:35,781 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:32:35,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:32:35,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:32:35,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:32:35,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:32:35,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:32:35,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:32:35,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:32:35,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:32:35,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:32:35,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:32:35,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:32:35,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:32:35,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:32:35,784 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:32:35,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:32:35,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:32:35,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:32:35,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:32:35,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:32:35,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:32:35,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:32:35,787 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:32:35,787 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_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba885d2ca843c278430bc3d4272c307ea7df8f1fbcd0da84e81382a8c1939a93 [2021-10-21 19:32:36,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:32:36,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:32:36,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:32:36,087 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:32:36,088 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:32:36,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2021-10-21 19:32:36,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/data/59b7b8134/0fe58f5f978a46cea87160c3915301ad/FLAGd3f05e664 [2021-10-21 19:32:36,811 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:32:36,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca-1.i [2021-10-21 19:32:36,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/data/59b7b8134/0fe58f5f978a46cea87160c3915301ad/FLAGd3f05e664 [2021-10-21 19:32:37,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/data/59b7b8134/0fe58f5f978a46cea87160c3915301ad [2021-10-21 19:32:37,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:32:37,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:32:37,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:32:37,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:32:37,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:32:37,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df6d96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37, skipping insertion in model container [2021-10-21 19:32:37,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:32:37,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:32:37,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:32:37,648 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:32:37,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:32:37,757 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:32:37,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37 WrapperNode [2021-10-21 19:32:37,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:32:37,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:32:37,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:32:37,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:32:37,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:32:37,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:32:37,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:32:37,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:32:37,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:32:37,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:32:37,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:32:37,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:32:37,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (1/1) ... [2021-10-21 19:32:37,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:37,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:37,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:37,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:32:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:32:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:32:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:32:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:32:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:32:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:32:38,376 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:32:38,376 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-21 19:32:38,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:38 BoogieIcfgContainer [2021-10-21 19:32:38,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:32:38,380 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:32:38,380 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:32:38,384 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:32:38,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:38,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:32:37" (1/3) ... [2021-10-21 19:32:38,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@346332f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:32:38, skipping insertion in model container [2021-10-21 19:32:38,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:38,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:37" (2/3) ... [2021-10-21 19:32:38,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@346332f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:32:38, skipping insertion in model container [2021-10-21 19:32:38,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:38,389 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:38" (3/3) ... [2021-10-21 19:32:38,390 INFO L389 chiAutomizerObserver]: Analyzing ICFG java_BubbleSort-alloca-1.i [2021-10-21 19:32:38,439 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:32:38,439 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:32:38,440 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:32:38,440 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:32:38,440 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:32:38,440 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:32:38,440 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:32:38,441 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:32:38,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:38,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-21 19:32:38,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:38,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:38,510 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:32:38,510 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:32:38,511 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:32:38,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:38,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-21 19:32:38,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:38,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:38,516 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:32:38,517 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:32:38,527 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 13#L523true assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 14#L523-2true call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 6#L528-3true [2021-10-21 19:32:38,528 INFO L793 eck$LassoCheckResult]: Loop: 6#L528-3true assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 10#L528-2true main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 6#L528-3true [2021-10-21 19:32:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:38,543 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-21 19:32:38,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:38,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174673257] [2021-10-21 19:32:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:38,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:38,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:38,703 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:38,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:38,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-10-21 19:32:38,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:38,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339188016] [2021-10-21 19:32:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:38,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:38,730 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:38,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:38,745 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-10-21 19:32:38,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:38,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171260265] [2021-10-21 19:32:38,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:38,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:38,775 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:38,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:39,262 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:39,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:39,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:39,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:39,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:39,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:39,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:39,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:39,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration1_Lasso [2021-10-21 19:32:39,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:39,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:39,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:39,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:39,785 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:39,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:39,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:39,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:39,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:39,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:39,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:39,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:39,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:39,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:39,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:39,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:39,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:32:39,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:39,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:39,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:39,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:39,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:39,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:32:39,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:39,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:39,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:39,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:39,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:39,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:39,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:39,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:39,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:39,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:39,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:39,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:39,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:39,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:39,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:39,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:39,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:39,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:39,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:39,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:39,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:32:40,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:40,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-21 19:32:40,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:40,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:40,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:40,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:32:40,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:40,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:40,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:40,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:40,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:40,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:40,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:40,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:40,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:40,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:40,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:40,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:40,127 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:40,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:40,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:40,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:40,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:40,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:40,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:40,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:40,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:40,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:32:40,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:40,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:40,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:40,194 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:40,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:32:40,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:40,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:40,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:40,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:40,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:40,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:40,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:40,243 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:40,291 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-21 19:32:40,292 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-21 19:32:40,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:40,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:40,297 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:40,305 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:40,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:32:40,333 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:32:40,333 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:40,334 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~numbers~0.offset, ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_~numbers~0.base)_1) = -1*ULTIMATE.start_main_~numbers~0.offset - 4*ULTIMATE.start_main_~i~1 + 1*v_rep(select #length ULTIMATE.start_main_~numbers~0.base)_1 Supporting invariants [] [2021-10-21 19:32:40,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:40,387 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-21 19:32:40,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:40,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:40,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:40,528 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:32:40,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-21 19:32:40,615 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Result 38 states and 56 transitions. Complement of second has 7 states. [2021-10-21 19:32:40,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-21 19:32:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2021-10-21 19:32:40,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:32:40,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:40,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-21 19:32:40,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:40,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-21 19:32:40,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:40,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 56 transitions. [2021-10-21 19:32:40,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 19:32:40,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 13 states and 18 transitions. [2021-10-21 19:32:40,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:32:40,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 19:32:40,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-10-21 19:32:40,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:40,636 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-21 19:32:40,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-10-21 19:32:40,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 19:32:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:40,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-10-21 19:32:40,663 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-21 19:32:40,663 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-21 19:32:40,663 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:32:40,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-10-21 19:32:40,665 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 19:32:40,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:40,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:40,665 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:40,665 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:32:40,666 INFO L791 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 112#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 113#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 114#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 117#L528-3 assume !(main_~i~1 < main_~array_size~0); 115#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 116#L515-3 [2021-10-21 19:32:40,666 INFO L793 eck$LassoCheckResult]: Loop: 116#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 120#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 121#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 116#L515-3 [2021-10-21 19:32:40,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:40,667 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-10-21 19:32:40,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:40,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855545910] [2021-10-21 19:32:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:40,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:40,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:40,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855545910] [2021-10-21 19:32:40,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855545910] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:32:40,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:32:40,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:32:40,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027039463] [2021-10-21 19:32:40,741 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:32:40,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:40,742 INFO L82 PathProgramCache]: Analyzing trace with hash 60779, now seen corresponding path program 1 times [2021-10-21 19:32:40,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:40,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563851151] [2021-10-21 19:32:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:40,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:40,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:40,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563851151] [2021-10-21 19:32:40,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563851151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:32:40,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:32:40,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:32:40,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474374128] [2021-10-21 19:32:40,776 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:32:40,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:32:40,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:32:40,781 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 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) [2021-10-21 19:32:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:40,810 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-10-21 19:32:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:32:40,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-21 19:32:40,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:40,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2021-10-21 19:32:40,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-21 19:32:40,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-21 19:32:40,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-10-21 19:32:40,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:40,818 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-21 19:32:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-10-21 19:32:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-21 19:32:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2021-10-21 19:32:40,822 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-21 19:32:40,822 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-21 19:32:40,822 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:32:40,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2021-10-21 19:32:40,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:40,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:40,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:40,827 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:40,827 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:40,827 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 148#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 149#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 152#L528-3 assume !(main_~i~1 < main_~array_size~0); 150#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 151#L515-3 [2021-10-21 19:32:40,828 INFO L793 eck$LassoCheckResult]: Loop: 151#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 155#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 156#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 158#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 159#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 157#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 151#L515-3 [2021-10-21 19:32:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:40,834 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 2 times [2021-10-21 19:32:40,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:40,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506347695] [2021-10-21 19:32:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:40,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:40,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:40,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506347695] [2021-10-21 19:32:40,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506347695] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:32:40,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:32:40,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:32:40,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460046651] [2021-10-21 19:32:40,870 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:32:40,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:40,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1812321306, now seen corresponding path program 1 times [2021-10-21 19:32:40,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:40,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999439824] [2021-10-21 19:32:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:40,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:40,883 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:40,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:41,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:32:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:32:41,121 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-10-21 19:32:41,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:41,144 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-21 19:32:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:32:41,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-10-21 19:32:41,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:41,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2021-10-21 19:32:41,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-21 19:32:41,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-21 19:32:41,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-10-21 19:32:41,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:41,147 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 19:32:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-10-21 19:32:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-21 19:32:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-10-21 19:32:41,149 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-21 19:32:41,149 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-21 19:32:41,149 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:32:41,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-10-21 19:32:41,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:41,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:41,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:41,151 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:41,151 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:41,151 INFO L791 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 183#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 184#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 185#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 188#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 189#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 190#L528-3 assume !(main_~i~1 < main_~array_size~0); 186#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 187#L515-3 [2021-10-21 19:32:41,151 INFO L793 eck$LassoCheckResult]: Loop: 187#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 191#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 192#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 194#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 195#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 193#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 187#L515-3 [2021-10-21 19:32:41,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:41,152 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-10-21 19:32:41,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:41,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768082036] [2021-10-21 19:32:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:41,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:41,180 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:41,223 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:41,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1812321306, now seen corresponding path program 2 times [2021-10-21 19:32:41,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:41,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822896768] [2021-10-21 19:32:41,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:41,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:41,250 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:41,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:41,273 INFO L82 PathProgramCache]: Analyzing trace with hash -256077176, now seen corresponding path program 1 times [2021-10-21 19:32:41,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:41,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919144352] [2021-10-21 19:32:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:41,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:41,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:41,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:41,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919144352] [2021-10-21 19:32:41,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919144352] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:41,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903588450] [2021-10-21 19:32:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:41,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:32:41,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:41,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:32:41,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:32:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:41,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:32:41,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:32:41,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903588450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:41,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:32:41,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-21 19:32:41,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329858680] [2021-10-21 19:32:41,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:41,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:32:41,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:32:41,937 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:42,077 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-10-21 19:32:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:32:42,078 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-10-21 19:32:42,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:42,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 17 states and 20 transitions. [2021-10-21 19:32:42,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-21 19:32:42,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-21 19:32:42,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2021-10-21 19:32:42,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:42,080 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-21 19:32:42,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2021-10-21 19:32:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-21 19:32:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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) [2021-10-21 19:32:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-21 19:32:42,082 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-21 19:32:42,082 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-21 19:32:42,082 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:32:42,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-21 19:32:42,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 19:32:42,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:42,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:42,084 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:42,084 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:42,084 INFO L791 eck$LassoCheckResult]: Stem: 280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 281#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 284#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 285#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 286#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 287#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 288#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 289#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 295#L528-3 assume !(main_~i~1 < main_~array_size~0); 282#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 283#L515-3 [2021-10-21 19:32:42,084 INFO L793 eck$LassoCheckResult]: Loop: 283#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 290#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 291#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 293#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 294#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 292#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 283#L515-3 [2021-10-21 19:32:42,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:42,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2021-10-21 19:32:42,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:42,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595185601] [2021-10-21 19:32:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:42,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:42,108 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:42,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:42,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:42,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1812321306, now seen corresponding path program 3 times [2021-10-21 19:32:42,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:42,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370068139] [2021-10-21 19:32:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:42,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:42,150 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:42,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:42,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:42,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1808202986, now seen corresponding path program 2 times [2021-10-21 19:32:42,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:42,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197964151] [2021-10-21 19:32:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:42,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:42,213 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:42,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:42,844 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:42,844 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:42,844 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:42,844 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:42,844 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:42,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:42,845 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:42,845 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:42,845 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration5_Lasso [2021-10-21 19:32:42,845 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:42,845 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:42,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:42,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:42,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:42,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:43,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:43,469 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:43,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,472 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:43,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:43,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:43,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:32:43,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,549 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:32:43,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:43,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:43,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:32:43,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:43,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:43,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:43,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,676 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:32:43,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:43,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:43,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:43,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,711 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:32:43,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:43,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:43,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:43,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,750 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:32:43,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:43,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:43,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:43,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,828 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:43,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:43,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:32:43,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:43,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:43,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:43,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:43,914 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:43,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:43,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:43,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:43,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:43,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:43,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:43,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:43,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:32:43,971 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:44,001 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-21 19:32:44,001 INFO L444 ModelExtractionUtils]: 29 out of 40 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-21 19:32:44,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:44,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:44,032 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:44,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:44,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:32:44,110 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:32:44,110 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:44,110 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sort_~pass~0, ULTIMATE.start_sort_~n) = -1*ULTIMATE.start_sort_~pass~0 + 1*ULTIMATE.start_sort_~n Supporting invariants [] [2021-10-21 19:32:44,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:44,172 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-21 19:32:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:44,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:44,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:44,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:32:44,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:44,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:32:44,342 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:32:44,342 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:44,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:44,374 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 4 states. [2021-10-21 19:32:44,374 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 [2021-10-21 19:32:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-10-21 19:32:44,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 19:32:44,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:44,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 16 letters. Loop has 6 letters. [2021-10-21 19:32:44,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:44,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 12 letters. [2021-10-21 19:32:44,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:44,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2021-10-21 19:32:44,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:44,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 27 transitions. [2021-10-21 19:32:44,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:32:44,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 19:32:44,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-21 19:32:44,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:44,379 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-21 19:32:44,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-21 19:32:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-21 19:32:44,381 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) [2021-10-21 19:32:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-21 19:32:44,382 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-21 19:32:44,382 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-21 19:32:44,383 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:32:44,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-10-21 19:32:44,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:44,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:44,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:44,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:44,385 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:32:44,385 INFO L791 eck$LassoCheckResult]: Stem: 410#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 411#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 414#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 415#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 416#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 417#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 418#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 419#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 429#L528-3 assume !(main_~i~1 < main_~array_size~0); 412#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 413#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 420#L516-3 [2021-10-21 19:32:44,385 INFO L793 eck$LassoCheckResult]: Loop: 420#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 421#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 426#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 420#L516-3 [2021-10-21 19:32:44,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1237095790, now seen corresponding path program 1 times [2021-10-21 19:32:44,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:44,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881263603] [2021-10-21 19:32:44,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:44,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,399 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:44,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,414 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 1 times [2021-10-21 19:32:44,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:44,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818194603] [2021-10-21 19:32:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:44,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,420 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:44,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash -793648259, now seen corresponding path program 1 times [2021-10-21 19:32:44,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:44,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039675383] [2021-10-21 19:32:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:44,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,448 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:44,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:44,960 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:44,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:44,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:44,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:44,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:44,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:44,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:44,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:44,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration6_Lasso [2021-10-21 19:32:44,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:44,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:44,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:44,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:45,535 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:32:45,535 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:32:45,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,541 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:45,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:45,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:45,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:32:45,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,616 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:45,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:45,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:45,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:32:45,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,692 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:32:45,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:45,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:45,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,750 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:32:45,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:45,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:45,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:45,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,872 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:32:45,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:45,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:45,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-21 19:32:45,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,926 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:32:45,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:32:45,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:32:45,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:32:45,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:32:45,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 19:32:45,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:45,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:45,972 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:45,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:32:45,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:32:45,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:32:45,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:32:45,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:32:45,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:32:45,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:32:45,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:32:46,022 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:32:46,064 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-21 19:32:46,064 INFO L444 ModelExtractionUtils]: 14 out of 43 variables were initially zero. Simplification set additionally 25 variables to zero. [2021-10-21 19:32:46,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:46,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,072 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:32:46,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:32:46,105 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:32:46,105 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:32:46,106 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sort_~x.offset, ULTIMATE.start_sort_~i~0, v_rep(select #length ULTIMATE.start_sort_~x.base)_2) = -1*ULTIMATE.start_sort_~x.offset - 4*ULTIMATE.start_sort_~i~0 + 2*v_rep(select #length ULTIMATE.start_sort_~x.base)_2 Supporting invariants [] [2021-10-21 19:32:46,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:46,165 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-21 19:32:46,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:32:46,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:32:46,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:46,290 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:32:46,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:46,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 50 transitions. Complement of second has 7 states. [2021-10-21 19:32:46,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:32:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-21 19:32:46,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2021-10-21 19:32:46,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:46,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-21 19:32:46,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:46,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2021-10-21 19:32:46,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:32:46,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 50 transitions. [2021-10-21 19:32:46,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:46,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 26 states and 34 transitions. [2021-10-21 19:32:46,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:32:46,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 19:32:46,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2021-10-21 19:32:46,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:46,314 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-10-21 19:32:46,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2021-10-21 19:32:46,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-10-21 19:32:46,317 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) [2021-10-21 19:32:46,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-10-21 19:32:46,318 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-21 19:32:46,318 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-21 19:32:46,318 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:32:46,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-10-21 19:32:46,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:46,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:46,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:46,320 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:46,320 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:32:46,321 INFO L791 eck$LassoCheckResult]: Stem: 556#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 557#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 560#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 561#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 562#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 563#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 564#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 565#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 575#L528-3 assume !(main_~i~1 < main_~array_size~0); 558#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 559#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 568#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 569#L517 assume !(sort_#t~mem4 > sort_#t~mem5);havoc sort_#t~mem4;havoc sort_#t~mem5; 573#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 574#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 571#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 570#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 566#L516-3 [2021-10-21 19:32:46,321 INFO L793 eck$LassoCheckResult]: Loop: 566#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 567#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 572#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 566#L516-3 [2021-10-21 19:32:46,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,321 INFO L82 PathProgramCache]: Analyzing trace with hash 221564791, now seen corresponding path program 1 times [2021-10-21 19:32:46,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:46,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014113699] [2021-10-21 19:32:46,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:46,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:32:46,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:46,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014113699] [2021-10-21 19:32:46,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014113699] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:46,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100809560] [2021-10-21 19:32:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:46,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:32:46,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:46,416 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:32:46,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-21 19:32:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:46,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:32:46,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:32:46,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100809560] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:46,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:32:46,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-21 19:32:46,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808951926] [2021-10-21 19:32:46,623 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:32:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,623 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 2 times [2021-10-21 19:32:46,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:46,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033051011] [2021-10-21 19:32:46,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:46,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:46,629 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:46,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:46,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:46,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:32:46,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:32:46,745 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:46,835 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-10-21 19:32:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:32:46,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-10-21 19:32:46,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:46,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 28 transitions. [2021-10-21 19:32:46,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:32:46,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 19:32:46,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-10-21 19:32:46,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:46,837 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-21 19:32:46,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-10-21 19:32:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-21 19:32:46,839 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) [2021-10-21 19:32:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-21 19:32:46,840 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-21 19:32:46,840 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-21 19:32:46,840 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:32:46,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-10-21 19:32:46,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:46,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:46,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:46,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:46,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:32:46,842 INFO L791 eck$LassoCheckResult]: Stem: 675#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 676#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 677#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 678#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 681#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 682#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 683#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 684#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 694#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 696#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 695#L528-3 assume !(main_~i~1 < main_~array_size~0); 679#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 680#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 687#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 688#L517 assume !(sort_#t~mem4 > sort_#t~mem5);havoc sort_#t~mem4;havoc sort_#t~mem5; 692#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 693#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 690#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 689#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 685#L516-3 [2021-10-21 19:32:46,842 INFO L793 eck$LassoCheckResult]: Loop: 685#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 686#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 691#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 685#L516-3 [2021-10-21 19:32:46,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:46,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1850126805, now seen corresponding path program 2 times [2021-10-21 19:32:46,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:46,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738584296] [2021-10-21 19:32:46,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:46,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:32:47,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:47,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738584296] [2021-10-21 19:32:47,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738584296] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:47,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848632277] [2021-10-21 19:32:47,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:32:47,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:32:47,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:47,007 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:32:47,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 19:32:47,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:32:47,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:32:47,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:32:47,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 19:32:47,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848632277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:47,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:32:47,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2021-10-21 19:32:47,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337167322] [2021-10-21 19:32:47,222 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:32:47,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,223 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 3 times [2021-10-21 19:32:47,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515424411] [2021-10-21 19:32:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,229 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:47,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:32:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:32:47,338 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-21 19:32:47,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:47,708 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-10-21 19:32:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:32:47,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2021-10-21 19:32:47,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:47,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 43 states and 56 transitions. [2021-10-21 19:32:47,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-21 19:32:47,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-21 19:32:47,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 56 transitions. [2021-10-21 19:32:47,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:47,711 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 56 transitions. [2021-10-21 19:32:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 56 transitions. [2021-10-21 19:32:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 25. [2021-10-21 19:32:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-10-21 19:32:47,715 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-10-21 19:32:47,715 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-10-21 19:32:47,715 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:32:47,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2021-10-21 19:32:47,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:47,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:47,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:47,717 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:47,717 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:32:47,717 INFO L791 eck$LassoCheckResult]: Stem: 832#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 833#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 834#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 835#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 838#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 839#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 840#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 841#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 851#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 854#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 853#L528-3 assume !(main_~i~1 < main_~array_size~0); 836#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 837#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 846#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 856#L517 assume !(sort_#t~mem4 > sort_#t~mem5);havoc sort_#t~mem4;havoc sort_#t~mem5; 850#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 844#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 845#L517 assume !(sort_#t~mem4 > sort_#t~mem5);havoc sort_#t~mem4;havoc sort_#t~mem5; 852#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 855#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 848#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 847#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 842#L516-3 [2021-10-21 19:32:47,718 INFO L793 eck$LassoCheckResult]: Loop: 842#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 843#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 849#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 842#L516-3 [2021-10-21 19:32:47,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,718 INFO L82 PathProgramCache]: Analyzing trace with hash -135460634, now seen corresponding path program 3 times [2021-10-21 19:32:47,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317471878] [2021-10-21 19:32:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:47,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,754 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 4 times [2021-10-21 19:32:47,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458646782] [2021-10-21 19:32:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,760 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:47,764 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:47,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:47,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1761549573, now seen corresponding path program 1 times [2021-10-21 19:32:47,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:47,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818223667] [2021-10-21 19:32:47,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:47,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:32:48,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:48,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818223667] [2021-10-21 19:32:48,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818223667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:48,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821320410] [2021-10-21 19:32:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:48,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:32:48,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:48,058 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:32:48,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-21 19:32:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:48,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:32:48,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:32:48,365 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-10-21 19:32:48,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2021-10-21 19:32:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:32:48,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821320410] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:32:48,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:32:48,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 19 [2021-10-21 19:32:48,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439581080] [2021-10-21 19:32:48,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-21 19:32:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2021-10-21 19:32:48,498 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. cyclomatic complexity: 9 Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:48,779 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-10-21 19:32:48,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:32:48,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2021-10-21 19:32:48,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-21 19:32:48,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 58 transitions. [2021-10-21 19:32:48,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-21 19:32:48,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-21 19:32:48,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 58 transitions. [2021-10-21 19:32:48,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:32:48,782 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 58 transitions. [2021-10-21 19:32:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 58 transitions. [2021-10-21 19:32:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2021-10-21 19:32:48,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 33 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:32:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2021-10-21 19:32:48,787 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-10-21 19:32:48,787 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-10-21 19:32:48,787 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:32:48,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 43 transitions. [2021-10-21 19:32:48,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:32:48,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:48,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:48,789 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:48,789 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:32:48,789 INFO L791 eck$LassoCheckResult]: Stem: 1015#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1016#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~1, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 1019#L523 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 1020#L523-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~1 := 0; 1021#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 1022#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 1023#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 1024#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 1039#L528-3 assume !!(main_~i~1 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet11; 1038#L528-2 main_#t~post10 := main_~i~1;main_~i~1 := 1 + main_#t~post10;havoc main_#t~post10; 1037#L528-3 assume !(main_~i~1 < main_~array_size~0); 1017#L528-4 sort_#in~x.base, sort_#in~x.offset, sort_#in~n := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc sort_#t~mem4, sort_#t~mem5, sort_#t~mem6, sort_#t~mem7, sort_~temp~0, sort_#t~post3, sort_#t~post2, sort_~x.base, sort_~x.offset, sort_~n, sort_~pass~0, sort_~i~0;sort_~x.base, sort_~x.offset := sort_#in~x.base, sort_#in~x.offset;sort_~n := sort_#in~n;havoc sort_~pass~0;havoc sort_~i~0;sort_~pass~0 := 1; 1018#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 1029#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 1043#L517 assume !(sort_#t~mem4 > sort_#t~mem5);havoc sort_#t~mem4;havoc sort_#t~mem5; 1035#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 1027#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 1028#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 1042#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 1046#L516-3 assume !(sort_~i~0 < sort_~n - sort_~pass~0); 1045#L515-2 sort_#t~post2 := sort_~pass~0;sort_~pass~0 := 1 + sort_#t~post2;havoc sort_#t~post2; 1044#L515-3 assume !!(sort_~pass~0 < sort_~n);sort_~i~0 := 0; 1034#L516-3 [2021-10-21 19:32:48,789 INFO L793 eck$LassoCheckResult]: Loop: 1034#L516-3 assume !!(sort_~i~0 < sort_~n - sort_~pass~0);call sort_#t~mem4 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);call sort_#t~mem5 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 1048#L517 assume sort_#t~mem4 > sort_#t~mem5;havoc sort_#t~mem4;havoc sort_#t~mem5;call sort_#t~mem6 := read~int(sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);sort_~temp~0 := sort_#t~mem6;havoc sort_#t~mem6;call sort_#t~mem7 := read~int(sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4);call write~int(sort_#t~mem7, sort_~x.base, sort_~x.offset + 4 * sort_~i~0, 4);havoc sort_#t~mem7;call write~int(sort_~temp~0, sort_~x.base, sort_~x.offset + 4 * (1 + sort_~i~0), 4); 1033#L516-2 sort_#t~post3 := sort_~i~0;sort_~i~0 := 1 + sort_#t~post3;havoc sort_#t~post3; 1034#L516-3 [2021-10-21 19:32:48,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:48,790 INFO L82 PathProgramCache]: Analyzing trace with hash -137307676, now seen corresponding path program 2 times [2021-10-21 19:32:48,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:48,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902066235] [2021-10-21 19:32:48,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:48,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:48,823 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:48,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:48,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:48,840 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 5 times [2021-10-21 19:32:48,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:48,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40465108] [2021-10-21 19:32:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:48,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:48,846 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:48,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:48,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:48,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1724071097, now seen corresponding path program 3 times [2021-10-21 19:32:48,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:48,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028210136] [2021-10-21 19:32:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:48,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:48,871 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:48,907 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:50,158 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:32:50,158 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:32:50,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:32:50,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:32:50,158 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:32:50,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:50,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:32:50,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:32:50,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_BubbleSort-alloca-1.i_Iteration10_Lasso [2021-10-21 19:32:50,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:32:50,158 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:32:50,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:32:50,267 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) [2021-10-21 19:32:50,270 INFO L168 Benchmark]: Toolchain (without parser) took 13192.83 ms. Allocated memory was 86.0 MB in the beginning and 188.7 MB in the end (delta: 102.8 MB). Free memory was 56.8 MB in the beginning and 71.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 90.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:50,271 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:32:50,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.90 ms. Allocated memory is still 86.0 MB. Free memory was 56.7 MB in the beginning and 41.3 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:50,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.39 ms. Allocated memory is still 86.0 MB. Free memory was 41.3 MB in the beginning and 39.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:50,272 INFO L168 Benchmark]: Boogie Preprocessor took 64.83 ms. Allocated memory is still 86.0 MB. Free memory was 39.5 MB in the beginning and 38.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:32:50,273 INFO L168 Benchmark]: RCFGBuilder took 475.86 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 38.2 MB in the beginning and 94.7 MB in the end (delta: -56.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:50,273 INFO L168 Benchmark]: BuchiAutomizer took 11889.19 ms. Allocated memory was 123.7 MB in the beginning and 188.7 MB in the end (delta: 65.0 MB). Free memory was 94.7 MB in the beginning and 71.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:32:50,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 54.8 MB in the beginning and 54.8 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 679.90 ms. Allocated memory is still 86.0 MB. Free memory was 56.7 MB in the beginning and 41.3 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.39 ms. Allocated memory is still 86.0 MB. Free memory was 41.3 MB in the beginning and 39.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.83 ms. Allocated memory is still 86.0 MB. Free memory was 39.5 MB in the beginning and 38.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 475.86 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 38.2 MB in the beginning and 94.7 MB in the end (delta: -56.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11889.19 ms. Allocated memory was 123.7 MB in the beginning and 188.7 MB in the end (delta: 65.0 MB). Free memory was 94.7 MB in the beginning and 71.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 88.7 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. [2021-10-21 19:32:50,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:50,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-21 19:32:50,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:32:50,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-21 19:32:51,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb790b4e-2281-479b-830f-66ace80e2f23/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...