./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array16_alloca_original.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array16_alloca_original.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro --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 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:17:58,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:17:58,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:17:58,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:17:58,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:17:58,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:17:58,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:17:58,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:17:58,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:17:58,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:17:58,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:17:58,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:17:58,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:17:58,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:17:58,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:17:58,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:17:58,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:17:58,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:17:58,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:17:58,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:17:58,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:17:58,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:17:58,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:17:58,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:17:58,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:17:58,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:17:58,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:17:58,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:17:58,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:17:58,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:17:58,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:17:58,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:17:58,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:17:58,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:17:58,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:17:58,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:17:58,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:17:58,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:17:58,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:17:58,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:17:58,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:17:58,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:17:58,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:17:58,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:17:58,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:17:58,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:17:58,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:17:58,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:17:58,742 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:17:58,743 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:17:58,743 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:17:58,743 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:17:58,744 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:17:58,744 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:17:58,744 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:17:58,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:17:58,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:17:58,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:17:58,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:17:58,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:17:58,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:17:58,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:17:58,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:17:58,746 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:17:58,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:17:58,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:17:58,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:17:58,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:17:58,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:17:58,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:17:58,748 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:17:58,748 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_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 [2022-11-18 20:17:58,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:17:59,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:17:59,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:17:59,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:17:59,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:17:59,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-15/array16_alloca_original.i [2022-11-18 20:17:59,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/data/c5ca367be/a3f8b306daf74f908155a184e303f322/FLAGa2edbf836 [2022-11-18 20:17:59,755 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:17:59,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/sv-benchmarks/c/termination-15/array16_alloca_original.i [2022-11-18 20:17:59,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/data/c5ca367be/a3f8b306daf74f908155a184e303f322/FLAGa2edbf836 [2022-11-18 20:18:00,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/data/c5ca367be/a3f8b306daf74f908155a184e303f322 [2022-11-18 20:18:00,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:18:00,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:18:00,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:18:00,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:18:00,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:18:00,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d633181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00, skipping insertion in model container [2022-11-18 20:18:00,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:18:00,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:18:00,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:18:00,553 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:18:00,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:18:00,643 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:18:00,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00 WrapperNode [2022-11-18 20:18:00,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:18:00,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:18:00,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:18:00,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:18:00,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,701 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-11-18 20:18:00,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:18:00,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:18:00,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:18:00,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:18:00,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:18:00,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:18:00,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:18:00,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:18:00,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (1/1) ... [2022-11-18 20:18:00,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:00,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:00,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:00,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:18:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:18:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:18:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:18:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:18:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:18:00,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:18:00,943 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:18:00,946 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:18:01,179 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:18:01,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:18:01,184 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:18:01,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:01 BoogieIcfgContainer [2022-11-18 20:18:01,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:18:01,187 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:18:01,187 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:18:01,204 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:18:01,205 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:18:01,205 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:18:00" (1/3) ... [2022-11-18 20:18:01,206 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44df1966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:18:01, skipping insertion in model container [2022-11-18 20:18:01,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:18:01,206 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:00" (2/3) ... [2022-11-18 20:18:01,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44df1966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:18:01, skipping insertion in model container [2022-11-18 20:18:01,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:18:01,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:01" (3/3) ... [2022-11-18 20:18:01,208 INFO L332 chiAutomizerObserver]: Analyzing ICFG array16_alloca_original.i [2022-11-18 20:18:01,287 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:18:01,287 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:18:01,288 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:18:01,288 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:18:01,288 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:18:01,288 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:18:01,288 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:18:01,289 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:18:01,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:01,336 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 20:18:01,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:01,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:01,346 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:18:01,346 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:18:01,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:18:01,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:01,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 20:18:01,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:01,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:01,352 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:18:01,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:18:01,361 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 10#L367true assume !(main_~length~0#1 < 1); 7#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 4#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 5#L370-3true [2022-11-18 20:18:01,363 INFO L750 eck$LassoCheckResult]: Loop: 5#L370-3true assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 12#L372true assume 1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2);havoc main_#t~mem209#1;call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 15#L370-2true main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 5#L370-3true [2022-11-18 20:18:01,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:01,371 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2022-11-18 20:18:01,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:01,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383626455] [2022-11-18 20:18:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:01,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:01,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:01,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:01,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2022-11-18 20:18:01,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:01,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791069494] [2022-11-18 20:18:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:01,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:01,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2022-11-18 20:18:01,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:01,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267896314] [2022-11-18 20:18:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:01,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:01,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:01,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:02,105 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:18:02,106 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:18:02,106 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:18:02,106 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:18:02,106 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:18:02,106 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:02,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:18:02,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:18:02,107 INFO L133 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration1_Lasso [2022-11-18 20:18:02,107 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:18:02,107 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:18:02,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,300 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,303 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:02,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:18:02,732 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:18:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:02,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:02,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:18:02,748 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 [2022-11-18 20:18:02,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:02,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:02,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:02,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:02,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:02,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:02,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:02,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:02,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:02,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:02,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:02,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:02,801 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 [2022-11-18 20:18:02,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:02,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:02,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:02,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:02,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:02,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:02,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:18:02,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:02,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:02,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:02,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:02,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:18:02,862 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 [2022-11-18 20:18:02,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:02,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:02,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:02,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:02,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:02,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:02,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:02,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:02,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:02,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:02,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:02,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:02,903 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 [2022-11-18 20:18:02,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:02,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:02,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:02,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:02,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:02,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:18:02,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:02,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:02,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:02,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:02,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:02,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:02,933 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:02,942 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 [2022-11-18 20:18:02,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:02,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:02,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:02,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:02,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:02,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:02,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:02,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:18:02,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:03,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-18 20:18:03,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:18:03,016 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 [2022-11-18 20:18:03,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:03,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:03,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:03,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:03,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:03,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:03,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:03,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:03,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:03,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:18:03,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:18:03,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:03,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:03,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:03,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:03,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:03,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:03,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:03,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:03,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,132 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 [2022-11-18 20:18:03,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:03,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:03,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:03,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:03,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:03,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:03,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:18:03,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:03,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:03,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,218 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 [2022-11-18 20:18:03,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:03,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:03,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:03,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:03,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:18:03,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:03,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:03,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:18:03,324 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2022-11-18 20:18:03,324 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-11-18 20:18:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,329 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:18:03,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:18:03,354 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:18:03,360 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:18:03,361 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~arr~0#1.offset) = -4*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 1*ULTIMATE.start_main_~arr~0#1.offset Supporting invariants [] [2022-11-18 20:18:03,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:03,392 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-11-18 20:18:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:18:03,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:18:03,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:03,576 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:18:03,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,652 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 50 transitions. Complement of second has 7 states. [2022-11-18 20:18:03,655 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 [2022-11-18 20:18:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2022-11-18 20:18:03,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-18 20:18:03,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:03,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-18 20:18:03,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:03,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-18 20:18:03,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:03,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2022-11-18 20:18:03,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:03,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 17 transitions. [2022-11-18 20:18:03,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 20:18:03,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-18 20:18:03,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-11-18 20:18:03,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:18:03,695 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-18 20:18:03,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-11-18 20:18:03,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 20:18:03,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-11-18 20:18:03,724 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-18 20:18:03,724 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-18 20:18:03,725 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:18:03,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2022-11-18 20:18:03,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:03,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:03,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:03,728 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:03,728 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:18:03,728 INFO L748 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 120#L367 assume !(main_~length~0#1 < 1); 114#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 115#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 116#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 117#L370-4 main_~j~0#1 := 0; 118#L378-2 [2022-11-18 20:18:03,729 INFO L750 eck$LassoCheckResult]: Loop: 118#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 119#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 118#L378-2 [2022-11-18 20:18:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:03,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2022-11-18 20:18:03,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:03,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375068851] [2022-11-18 20:18:03,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:03,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:03,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:03,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375068851] [2022-11-18 20:18:03,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375068851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:03,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:03,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:18:03,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368334991] [2022-11-18 20:18:03,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:03,860 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:18:03,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:03,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2022-11-18 20:18:03,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:03,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376230702] [2022-11-18 20:18:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:03,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:03,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:03,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:03,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:03,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:18:03,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:18:03,939 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 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) [2022-11-18 20:18:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:03,967 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2022-11-18 20:18:03,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2022-11-18 20:18:03,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:03,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2022-11-18 20:18:03,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 20:18:03,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-18 20:18:03,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2022-11-18 20:18:03,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:18:03,969 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-11-18 20:18:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2022-11-18 20:18:03,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 20:18:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-18 20:18:03,971 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-18 20:18:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:18:03,972 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-18 20:18:03,972 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:18:03,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-11-18 20:18:03,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:03,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:03,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:03,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:03,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:18:03,974 INFO L748 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 153#L367 assume !(main_~length~0#1 < 1); 147#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 148#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 149#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 154#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 156#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 155#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 150#L370-4 main_~j~0#1 := 0; 151#L378-2 [2022-11-18 20:18:03,974 INFO L750 eck$LassoCheckResult]: Loop: 151#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 152#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 151#L378-2 [2022-11-18 20:18:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:03,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2022-11-18 20:18:03,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:03,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320864660] [2022-11-18 20:18:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:03,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:04,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:04,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 2 times [2022-11-18 20:18:04,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:04,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518719234] [2022-11-18 20:18:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:04,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:04,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996831, now seen corresponding path program 1 times [2022-11-18 20:18:04,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:04,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2836912] [2022-11-18 20:18:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:04,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:04,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:04,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-18 20:18:04,412 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:18:04,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:18:04,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:18:04,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:18:04,413 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:18:04,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:04,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:18:04,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:18:04,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration3_Lasso [2022-11-18 20:18:04,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:18:04,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:18:04,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,433 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,436 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,638 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,644 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,647 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,651 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:04,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:05,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:18:05,151 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:18:05,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:05,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,153 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,164 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 [2022-11-18 20:18:05,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:05,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:05,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:05,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:05,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:05,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:05,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:05,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:18:05,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:05,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:05,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:05,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,202 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,206 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 [2022-11-18 20:18:05,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:05,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:05,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:05,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:05,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:05,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:05,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:05,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:18:05,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:05,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:05,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,240 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,247 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 [2022-11-18 20:18:05,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:18:05,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:05,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:05,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:05,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:05,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:05,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:05,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:05,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:05,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:05,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,283 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:18:05,294 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 [2022-11-18 20:18:05,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:05,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:05,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:05,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:05,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:05,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:05,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:05,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:05,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:05,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:05,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,327 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:18:05,331 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 [2022-11-18 20:18:05,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:05,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:05,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:05,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:05,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:05,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:05,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:18:05,409 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-11-18 20:18:05,409 INFO L444 ModelExtractionUtils]: 17 out of 25 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-18 20:18:05,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:05,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,411 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,419 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:18:05,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:18:05,437 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:18:05,437 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:18:05,437 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-11-18 20:18:05,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:05,458 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-11-18 20:18:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:05,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:18:05,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:05,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:18:05,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:05,537 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:18:05,537 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 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) [2022-11-18 20:18:05,557 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. 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 16 states and 22 transitions. Complement of second has 5 states. [2022-11-18 20:18:05,558 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 [2022-11-18 20:18:05,560 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) [2022-11-18 20:18:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2022-11-18 20:18:05,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 2 letters. [2022-11-18 20:18:05,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:05,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2022-11-18 20:18:05,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:05,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-18 20:18:05,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:05,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2022-11-18 20:18:05,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:05,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 22 transitions. [2022-11-18 20:18:05,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 20:18:05,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 20:18:05,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2022-11-18 20:18:05,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:18:05,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:18:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2022-11-18 20:18:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:18:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2022-11-18 20:18:05,568 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:18:05,568 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:18:05,568 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:18:05,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2022-11-18 20:18:05,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:05,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:05,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:05,571 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:05,571 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:18:05,572 INFO L748 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 242#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 252#L367 assume !(main_~length~0#1 < 1); 243#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 244#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 245#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 253#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 255#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 254#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 246#L370-4 main_~j~0#1 := 0; 247#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 248#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 249#L378-2 [2022-11-18 20:18:05,572 INFO L750 eck$LassoCheckResult]: Loop: 249#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 256#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 249#L378-2 [2022-11-18 20:18:05,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996833, now seen corresponding path program 1 times [2022-11-18 20:18:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:05,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190911770] [2022-11-18 20:18:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:05,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:05,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:05,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:05,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 3 times [2022-11-18 20:18:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:05,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158119455] [2022-11-18 20:18:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:05,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:05,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:05,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash -645451100, now seen corresponding path program 1 times [2022-11-18 20:18:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:05,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892459022] [2022-11-18 20:18:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:05,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:18:05,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892459022] [2022-11-18 20:18:05,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892459022] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:18:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859431643] [2022-11-18 20:18:05,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:05,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:18:05,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,808 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:18:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:05,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:18:05,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:05,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:18:05,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:18:05,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859431643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:05,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:18:05,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-18 20:18:05,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086903280] [2022-11-18 20:18:05,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:18:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:18:05,949 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-18 20:18:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:05,970 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2022-11-18 20:18:05,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2022-11-18 20:18:05,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:05,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 22 transitions. [2022-11-18 20:18:05,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:18:05,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 20:18:05,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2022-11-18 20:18:05,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:18:05,972 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-18 20:18:05,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2022-11-18 20:18:05,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-18 20:18:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 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) [2022-11-18 20:18:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2022-11-18 20:18:05,974 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-11-18 20:18:05,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:18:05,975 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-11-18 20:18:05,975 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:18:05,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2022-11-18 20:18:05,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:05,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:05,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:05,977 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:05,977 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:18:05,977 INFO L748 eck$LassoCheckResult]: Stem: 325#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 326#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 336#L367 assume !(main_~length~0#1 < 1); 327#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 328#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 329#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 337#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 340#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 338#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 334#L370-4 main_~j~0#1 := 0; 335#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 332#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 333#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 330#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 331#L378-2 [2022-11-18 20:18:05,977 INFO L750 eck$LassoCheckResult]: Loop: 331#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 339#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 331#L378-2 [2022-11-18 20:18:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:05,978 INFO L85 PathProgramCache]: Analyzing trace with hash -645453020, now seen corresponding path program 2 times [2022-11-18 20:18:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:05,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694551782] [2022-11-18 20:18:05,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:05,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:06,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:06,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694551782] [2022-11-18 20:18:06,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694551782] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:18:06,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349283904] [2022-11-18 20:18:06,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:18:06,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:18:06,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:06,137 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:18:06,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 20:18:06,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:18:06,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:18:06,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:18:06,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:06,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:06,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:18:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:06,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349283904] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:18:06,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:18:06,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-11-18 20:18:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339844927] [2022-11-18 20:18:06,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:18:06,324 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:18:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 4 times [2022-11-18 20:18:06,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:06,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924852496] [2022-11-18 20:18:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:06,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:18:06,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:18:06,394 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 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) [2022-11-18 20:18:06,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:06,527 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2022-11-18 20:18:06,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2022-11-18 20:18:06,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:06,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 21 states and 27 transitions. [2022-11-18 20:18:06,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:18:06,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 20:18:06,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2022-11-18 20:18:06,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:18:06,530 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-11-18 20:18:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2022-11-18 20:18:06,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-11-18 20:18:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-11-18 20:18:06,532 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-18 20:18:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:18:06,533 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-18 20:18:06,533 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:18:06,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2022-11-18 20:18:06,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:06,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:06,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:06,535 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:06,535 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:18:06,535 INFO L748 eck$LassoCheckResult]: Stem: 476#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 477#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 487#L367 assume !(main_~length~0#1 < 1); 478#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 479#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 480#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 488#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 493#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 489#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 490#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 491#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 494#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 481#L370-4 main_~j~0#1 := 0; 482#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 485#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 486#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 483#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 484#L378-2 [2022-11-18 20:18:06,535 INFO L750 eck$LassoCheckResult]: Loop: 484#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 492#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 484#L378-2 [2022-11-18 20:18:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash -685994466, now seen corresponding path program 3 times [2022-11-18 20:18:06,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:06,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144751397] [2022-11-18 20:18:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:06,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:06,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:06,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 5 times [2022-11-18 20:18:06,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:06,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495494987] [2022-11-18 20:18:06,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:06,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2110684191, now seen corresponding path program 4 times [2022-11-18 20:18:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:06,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097469334] [2022-11-18 20:18:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:06,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:06,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:07,467 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:18:07,467 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:18:07,467 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:18:07,467 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:18:07,467 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:18:07,467 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:07,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:18:07,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:18:07,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration6_Lasso [2022-11-18 20:18:07,468 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:18:07,468 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:18:07,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,484 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,489 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,492 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,780 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:07,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:18:08,243 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:18:08,243 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:18:08,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,282 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:18:08,290 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 [2022-11-18 20:18:08,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-11-18 20:18:08,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,328 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,340 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 [2022-11-18 20:18:08,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:18:08,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,377 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,390 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 [2022-11-18 20:18:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 20:18:08,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,421 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:18:08,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:18:08,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,444 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 20:18:08,447 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 [2022-11-18 20:18:08,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:08,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:08,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,476 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,483 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 [2022-11-18 20:18:08,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:08,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:08,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 20:18:08,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,520 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,527 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 [2022-11-18 20:18:08,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 20:18:08,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,557 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,561 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 [2022-11-18 20:18:08,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 20:18:08,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,579 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 20:18:08,583 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 [2022-11-18 20:18:08,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:08,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:08,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:08,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,599 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 20:18:08,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:18:08,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:08,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:08,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:08,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-11-18 20:18:08,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,633 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 20:18:08,635 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 [2022-11-18 20:18:08,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:08,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:08,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:08,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:08,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:08,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:08,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:18:08,698 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-11-18 20:18:08,698 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2022-11-18 20:18:08,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:08,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:08,707 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:08,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:18:08,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 20:18:08,747 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:18:08,748 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:18:08,748 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_3, ULTIMATE.start_main_~arr~0#1.offset) = -4*ULTIMATE.start_main_~j~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_3 - 1*ULTIMATE.start_main_~arr~0#1.offset Supporting invariants [] [2022-11-18 20:18:08,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:08,770 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2022-11-18 20:18:08,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:08,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:18:08,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:08,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:18:08,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:08,861 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:18:08,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 5 states. [2022-11-18 20:18:08,876 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 [2022-11-18 20:18:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2022-11-18 20:18:08,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2022-11-18 20:18:08,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:08,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 19 letters. Loop has 2 letters. [2022-11-18 20:18:08,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:08,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 4 letters. [2022-11-18 20:18:08,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:08,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2022-11-18 20:18:08,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:08,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2022-11-18 20:18:08,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 20:18:08,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 20:18:08,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2022-11-18 20:18:08,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:18:08,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-18 20:18:08,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2022-11-18 20:18:08,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 20:18:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 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) [2022-11-18 20:18:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-18 20:18:08,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-18 20:18:08,882 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-18 20:18:08,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:18:08,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2022-11-18 20:18:08,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:18:08,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:08,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:08,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:08,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:18:08,883 INFO L748 eck$LassoCheckResult]: Stem: 615#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 616#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 626#L367 assume !(main_~length~0#1 < 1); 617#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 618#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 619#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 627#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 632#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 628#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 629#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 631#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 633#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 624#L370-4 main_~j~0#1 := 0; 625#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 637#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 636#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 635#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 634#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 620#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 621#L378-2 [2022-11-18 20:18:08,884 INFO L750 eck$LassoCheckResult]: Loop: 621#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 630#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 621#L378-2 [2022-11-18 20:18:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:08,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2110684189, now seen corresponding path program 5 times [2022-11-18 20:18:08,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:08,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538453321] [2022-11-18 20:18:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:08,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:09,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:18:09,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:09,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538453321] [2022-11-18 20:18:09,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538453321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:18:09,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850052193] [2022-11-18 20:18:09,480 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:18:09,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:18:09,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:09,483 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:18:09,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-18 20:18:09,558 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-18 20:18:09,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:18:09,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-18 20:18:09,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:09,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:18:09,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:18:09,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-18 20:18:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:09,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:18:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:18:09,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850052193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:18:09,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:18:09,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 5] total 16 [2022-11-18 20:18:09,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247426014] [2022-11-18 20:18:09,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:18:09,914 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:18:09,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:09,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 6 times [2022-11-18 20:18:09,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:09,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857907598] [2022-11-18 20:18:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:09,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:09,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:09,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:09,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:09,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:18:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:18:09,979 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand has 17 states, 16 states have (on average 2.4375) internal successors, (39), 17 states have internal predecessors, (39), 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) [2022-11-18 20:18:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:10,326 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-11-18 20:18:10,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2022-11-18 20:18:10,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-18 20:18:10,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 39 states and 48 transitions. [2022-11-18 20:18:10,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-18 20:18:10,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2022-11-18 20:18:10,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2022-11-18 20:18:10,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:18:10,328 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-18 20:18:10,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2022-11-18 20:18:10,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2022-11-18 20:18:10,330 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) [2022-11-18 20:18:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-18 20:18:10,331 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-18 20:18:10,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:18:10,332 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-18 20:18:10,332 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:18:10,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2022-11-18 20:18:10,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:18:10,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:18:10,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:18:10,334 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:10,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-11-18 20:18:10,334 INFO L748 eck$LassoCheckResult]: Stem: 829#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 830#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet208#1, main_#t~mem209#1, main_#t~post207#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 838#L367 assume !(main_~length~0#1 < 1); 827#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 828#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 831#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 839#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 842#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 840#L370-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet208#1;call main_#t~mem209#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 841#L372 assume !(1 == (if main_#t~mem209#1 < 0 && 0 != main_#t~mem209#1 % 2 then main_#t~mem209#1 % 2 - 2 else main_#t~mem209#1 % 2));havoc main_#t~mem209#1; 847#L370-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 846#L370-3 assume !(main_~i~0#1 < main_~length~0#1); 832#L370-4 main_~j~0#1 := 0; 833#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 836#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 837#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 849#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 848#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 845#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 844#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 834#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 835#L378-2 [2022-11-18 20:18:10,334 INFO L750 eck$LassoCheckResult]: Loop: 835#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 843#L378 assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1; 850#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 851#L378 assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1; 835#L378-2 [2022-11-18 20:18:10,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1142942490, now seen corresponding path program 6 times [2022-11-18 20:18:10,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:10,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957547221] [2022-11-18 20:18:10,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:10,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:10,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:10,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:10,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2219337, now seen corresponding path program 1 times [2022-11-18 20:18:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:10,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044683034] [2022-11-18 20:18:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:10,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:10,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:10,490 INFO L85 PathProgramCache]: Analyzing trace with hash -227346514, now seen corresponding path program 7 times [2022-11-18 20:18:10,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:10,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566534188] [2022-11-18 20:18:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:10,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:10,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:10,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:18:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:11,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:18:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:18:11,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:18:11 BoogieIcfgContainer [2022-11-18 20:18:11,962 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:18:11,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:18:11,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:18:11,986 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:18:11,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:01" (3/4) ... [2022-11-18 20:18:11,989 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 20:18:12,058 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87624047-684c-4534-be62-f89e2c3013ba/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:18:12,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:18:12,059 INFO L158 Benchmark]: Toolchain (without parser) took 12005.47ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 76.2MB in the beginning and 50.5MB in the end (delta: 25.6MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,059 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:18:12,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.68ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 82.7MB in the end (delta: -6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.98ms. Allocated memory is still 115.3MB. Free memory was 82.7MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,060 INFO L158 Benchmark]: Boogie Preprocessor took 50.96ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,061 INFO L158 Benchmark]: RCFGBuilder took 431.66ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 68.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,075 INFO L158 Benchmark]: BuchiAutomizer took 10774.85ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 68.1MB in the beginning and 53.7MB in the end (delta: 14.4MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,075 INFO L158 Benchmark]: Witness Printer took 83.38ms. Allocated memory is still 169.9MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:18:12,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.68ms. Allocated memory is still 115.3MB. Free memory was 76.0MB in the beginning and 82.7MB in the end (delta: -6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.98ms. Allocated memory is still 115.3MB. Free memory was 82.7MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.96ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.66ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 68.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 10774.85ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 68.1MB in the beginning and 53.7MB in the end (delta: 14.4MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 83.38ms. Allocated memory is still 169.9MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[arr] + -1 * arr and consists of 5 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One deterministic module has affine ranking function -4 * j + unknown-#length-unknown[arr] + -1 * arr and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 17 locations. The remainder module has 25 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.6s and 8 iterations. TraceHistogramMax:4. Analysis of lassos took 9.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 79 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf100 lsp92 ukn84 mio100 lsp58 div173 bol100 ite100 ukn100 eq154 hnf93 smp66 dnf100 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) VAL [length=2] [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, length=2] [L369] COND FALSE !(!arr) [L370] i=0 VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=0, length=2] [L370] COND TRUE i