./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array04_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array04_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY --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 64bit --witnessprinter.graph.data.programhash 1183c091737a27abb58fd8d0696c96a2bb1d5baea63debedec24831694536a86 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:06:15,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:06:15,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:06:15,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:06:15,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:06:15,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:06:15,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:06:15,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:06:15,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:06:15,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:06:15,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:06:15,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:06:15,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:06:15,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:06:15,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:06:15,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:06:15,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:06:15,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:06:15,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:06:15,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:06:15,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:06:15,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:06:15,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:06:15,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:06:15,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:06:15,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:06:15,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:06:15,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:06:15,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:06:15,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:06:15,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:06:15,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:06:15,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:06:15,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:06:15,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:06:15,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:06:15,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:06:15,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:06:15,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:06:15,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:06:15,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:06:15,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 08:06:15,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:06:15,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:06:15,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:06:15,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:06:15,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:06:15,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:06:15,887 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:06:15,888 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:06:15,888 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:06:15,888 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:06:15,889 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:06:15,890 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:06:15,890 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:06:15,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:06:15,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:06:15,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:06:15,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:06:15,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:06:15,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:06:15,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:06:15,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:06:15,892 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:06:15,892 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:06:15,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:06:15,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:06:15,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:06:15,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:06:15,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:06:15,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:06:15,896 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:06:15,897 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_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1183c091737a27abb58fd8d0696c96a2bb1d5baea63debedec24831694536a86 [2021-11-07 08:06:16,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:06:16,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:06:16,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:06:16,233 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:06:16,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:06:16,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-15/array04_alloca.i [2021-11-07 08:06:16,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/data/db55ced44/f791131198254ee9a4b4d98b108be915/FLAG0ee46d593 [2021-11-07 08:06:16,843 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:06:16,843 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/sv-benchmarks/c/termination-15/array04_alloca.i [2021-11-07 08:06:16,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/data/db55ced44/f791131198254ee9a4b4d98b108be915/FLAG0ee46d593 [2021-11-07 08:06:17,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/data/db55ced44/f791131198254ee9a4b4d98b108be915 [2021-11-07 08:06:17,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:06:17,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:06:17,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:06:17,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:06:17,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:06:17,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da36486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17, skipping insertion in model container [2021-11-07 08:06:17,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:06:17,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:06:17,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:06:17,620 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:06:17,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:06:17,738 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:06:17,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17 WrapperNode [2021-11-07 08:06:17,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:06:17,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:06:17,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:06:17,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:06:17,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:06:17,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:06:17,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:06:17,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:06:17,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:06:17,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:06:17,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:06:17,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:06:17,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (1/1) ... [2021-11-07 08:06:17,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:17,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:06:17,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:06:17,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:06:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:06:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:06:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:06:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:06:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:06:17,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:06:18,089 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:06:18,089 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 08:06:18,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:06:18 BoogieIcfgContainer [2021-11-07 08:06:18,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:06:18,092 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:06:18,092 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:06:18,110 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:06:18,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:06:18,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:06:17" (1/3) ... [2021-11-07 08:06:18,113 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c4d3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:06:18, skipping insertion in model container [2021-11-07 08:06:18,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:06:18,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:06:17" (2/3) ... [2021-11-07 08:06:18,113 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c4d3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:06:18, skipping insertion in model container [2021-11-07 08:06:18,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:06:18,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:06:18" (3/3) ... [2021-11-07 08:06:18,116 INFO L389 chiAutomizerObserver]: Analyzing ICFG array04_alloca.i [2021-11-07 08:06:18,188 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:06:18,189 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:06:18,189 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:06:18,189 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:06:18,189 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:06:18,189 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:06:18,189 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:06:18,189 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:06:18,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) 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) [2021-11-07 08:06:18,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-11-07 08:06:18,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:06:18,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:06:18,246 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-07 08:06:18,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 08:06:18,247 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:06:18,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) 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) [2021-11-07 08:06:18,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-11-07 08:06:18,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:06:18,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:06:18,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-07 08:06:18,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 08:06:18,274 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 12#L367true assume !(main_~length~0 < 1); 9#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 6#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 7#L370-3true [2021-11-07 08:06:18,274 INFO L793 eck$LassoCheckResult]: Loop: 7#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 13#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 7#L370-3true [2021-11-07 08:06:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-11-07 08:06:18,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:18,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122488589] [2021-11-07 08:06:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:18,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:18,454 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:18,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:18,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:18,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-11-07 08:06:18,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:18,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661259295] [2021-11-07 08:06:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:18,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:18,546 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:18,568 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:18,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-11-07 08:06:18,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:18,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748829651] [2021-11-07 08:06:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:18,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:18,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:18,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:19,038 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:06:19,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:06:19,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:06:19,039 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:06:19,039 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:06:19,039 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:19,039 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:06:19,039 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:06:19,039 INFO L133 ssoRankerPreferences]: Filename of dumped script: array04_alloca.i_Iteration1_Lasso [2021-11-07 08:06:19,040 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:06:19,040 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:06:19,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:06:19,411 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:06:19,416 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:06:19,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:19,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:06:19,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:06:19,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:06:19,434 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 [2021-11-07 08:06:19,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:06:19,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:06:19,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:06:19,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:06:19,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:06:19,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:06:19,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:06:19,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:06:19,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-07 08:06:19,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:19,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:06:19,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:06:19,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:06:19,501 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 [2021-11-07 08:06:19,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:06:19,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:06:19,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:06:19,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:06:19,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:06:19,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:06:19,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:06:19,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:06:19,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:06:19,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:19,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:06:19,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:06:19,579 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 [2021-11-07 08:06:19,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:06:19,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:06:19,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:06:19,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:06:19,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:06:19,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:06:19,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:06:19,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:06:19,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-07 08:06:19,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:19,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:06:19,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:06:19,643 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 [2021-11-07 08:06:19,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:06:19,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:06:19,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:06:19,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:06:19,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:06:19,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:06:19,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:06:19,700 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:06:19,756 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-11-07 08:06:19,757 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-07 08:06:19,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:06:19,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:06:19,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:06:19,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:06:19,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:06:19,816 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-07 08:06:19,816 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:06:19,817 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-11-07 08:06:19,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:06:19,871 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-07 08:06:19,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:19,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:06:19,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:06:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:19,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:06:19,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:06:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:20,028 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 [2021-11-07 08:06:20,030 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,098 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) 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). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 40 transitions. Complement of second has 7 states. [2021-11-07 08:06:20,099 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 [2021-11-07 08:06:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-11-07 08:06:20,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-07 08:06:20,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:06:20,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-07 08:06:20,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:06:20,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-07 08:06:20,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:06:20,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2021-11-07 08:06:20,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:06:20,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 10 states and 13 transitions. [2021-11-07 08:06:20,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-07 08:06:20,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-07 08:06:20,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-11-07 08:06:20,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:06:20,124 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-07 08:06:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-11-07 08:06:20,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-07 08:06:20,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-11-07 08:06:20,152 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-07 08:06:20,152 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-07 08:06:20,153 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:06:20,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-11-07 08:06:20,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:06:20,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:06:20,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:06:20,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:06:20,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:06:20,157 INFO L791 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 107#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 110#L367 assume !(main_~length~0 < 1); 104#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 105#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 108#L370-3 assume !(main_~i~0 < main_~length~0); 109#L370-4 main_~j~0 := 0; 103#L374-2 [2021-11-07 08:06:20,158 INFO L793 eck$LassoCheckResult]: Loop: 103#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_~j~0 := main_~j~0 + main_#t~mem209;havoc main_#t~mem209; 103#L374-2 [2021-11-07 08:06:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:20,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2021-11-07 08:06:20,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:20,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901898493] [2021-11-07 08:06:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:20,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:20,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:20,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901898493] [2021-11-07 08:06:20,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901898493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:20,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:20,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:06:20,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308409012] [2021-11-07 08:06:20,273 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:06:20,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:20,274 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2021-11-07 08:06:20,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:20,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976206098] [2021-11-07 08:06:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:20,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,288 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:20,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:06:20,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:06:20,360 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:20,402 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-07 08:06:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:06:20,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-11-07 08:06:20,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:06:20,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2021-11-07 08:06:20,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-07 08:06:20,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-07 08:06:20,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-11-07 08:06:20,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:06:20,407 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-07 08:06:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-11-07 08:06:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-07 08:06:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 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) [2021-11-07 08:06:20,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-07 08:06:20,411 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-07 08:06:20,412 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-07 08:06:20,412 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 08:06:20,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-11-07 08:06:20,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:06:20,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:06:20,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:06:20,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:06:20,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:06:20,421 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 133#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 138#L367 assume !(main_~length~0 < 1); 134#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 135#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 136#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 139#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 140#L370-3 assume !(main_~i~0 < main_~length~0); 137#L370-4 main_~j~0 := 0; 131#L374-2 [2021-11-07 08:06:20,421 INFO L793 eck$LassoCheckResult]: Loop: 131#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_~j~0 := main_~j~0 + main_#t~mem209;havoc main_#t~mem209; 131#L374-2 [2021-11-07 08:06:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:20,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1182969107, now seen corresponding path program 1 times [2021-11-07 08:06:20,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:20,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785967700] [2021-11-07 08:06:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:20,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,446 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:20,471 INFO L85 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2021-11-07 08:06:20,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:20,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191615399] [2021-11-07 08:06:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:20,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,477 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:20,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1982663310, now seen corresponding path program 1 times [2021-11-07 08:06:20,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:20,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90239089] [2021-11-07 08:06:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:20,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:06:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:06:20,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:06:20,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:06:20 BoogieIcfgContainer [2021-11-07 08:06:20,904 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:06:20,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:06:20,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:06:20,905 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:06:20,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:06:18" (3/4) ... [2021-11-07 08:06:20,908 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-07 08:06:20,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:06:20,961 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca4fa8b0-3f00-4525-a0c1-f5dab9b733e6/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:06:20,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:06:20,963 INFO L168 Benchmark]: Toolchain (without parser) took 3758.23 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 46.2 MB in the beginning and 85.8 MB in the end (delta: -39.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:06:20,963 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 63.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:06:20,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.03 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 46.0 MB in the beginning and 81.1 MB in the end (delta: -35.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:06:20,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 79.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:06:20,966 INFO L168 Benchmark]: Boogie Preprocessor took 23.91 ms. Allocated memory is still 115.3 MB. Free memory was 79.4 MB in the beginning and 78.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:06:20,966 INFO L168 Benchmark]: RCFGBuilder took 282.60 ms. Allocated memory is still 115.3 MB. Free memory was 78.2 MB in the beginning and 68.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:06:20,967 INFO L168 Benchmark]: BuchiAutomizer took 2812.01 ms. Allocated memory is still 115.3 MB. Free memory was 68.5 MB in the beginning and 87.0 MB in the end (delta: -18.4 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:06:20,967 INFO L168 Benchmark]: Witness Printer took 56.71 ms. Allocated memory is still 115.3 MB. Free memory was 87.0 MB in the beginning and 85.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:06:20,971 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 is still 63.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 534.03 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 46.0 MB in the beginning and 81.1 MB in the end (delta: -35.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 79.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.91 ms. Allocated memory is still 115.3 MB. Free memory was 79.4 MB in the beginning and 78.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 282.60 ms. Allocated memory is still 115.3 MB. Free memory was 78.2 MB in the beginning and 68.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2812.01 ms. Allocated memory is still 115.3 MB. Free memory was 68.5 MB in the beginning and 87.0 MB in the end (delta: -18.4 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. * Witness Printer took 56.71 ms. Allocated memory is still 115.3 MB. Free memory was 87.0 MB in the beginning and 85.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function length + -1 * i and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 24 SDslu, 10 SDs, 0 SdLazy, 25 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital99 mio100 ax100 hnf100 lsp93 ukn80 mio100 lsp63 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 374]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, \result=0, NULL=1, arr=2, arr=0, i=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@255574b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@370c1449=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@495d8ba4=0, length=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@23563a0a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@495d8ba4=2, j=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6da8f953=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 374]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); [L369] COND FALSE !(!arr) [L370] i=0 [L370] COND TRUE i