./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/sep05-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 --- 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-6b4ec56 [2022-11-20 12:48:19,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:48:19,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:48:19,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:48:19,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:48:19,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:48:19,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:48:19,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:48:19,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:48:19,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:48:19,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:48:19,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:48:19,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:48:19,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:48:19,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:48:19,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:48:19,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:48:19,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:48:19,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:48:19,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:48:19,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:48:19,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:48:19,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:48:19,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:48:19,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:48:19,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:48:19,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:48:19,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:48:19,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:48:19,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:48:19,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:48:19,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:48:19,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:48:19,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:48:19,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:48:19,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:48:19,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:48:19,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:48:19,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:48:19,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:48:19,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:48:19,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 12:48:19,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:48:19,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:48:19,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:48:19,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:48:19,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:48:19,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:48:19,934 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:48:19,934 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:48:19,934 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:48:19,934 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:48:19,935 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:48:19,936 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:48:19,936 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:48:19,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:48:19,936 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:48:19,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:48:19,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:48:19,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:48:19,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:48:19,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:48:19,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:48:19,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:48:19,938 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:48:19,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:48:19,938 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:48:19,939 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:48:19,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:48:19,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:48:19,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:48:19,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:48:19,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:48:19,942 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:48:19,942 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_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 [2022-11-20 12:48:20,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:48:20,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:48:20,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:48:20,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:48:20,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:48:20,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/reducercommutativity/sep05-1.i [2022-11-20 12:48:23,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:48:23,526 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:48:23,527 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/sv-benchmarks/c/reducercommutativity/sep05-1.i [2022-11-20 12:48:23,533 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/data/4df3c7fe4/926fcd8d7de44b2ebbd145228357f4b2/FLAG2aa14d7e5 [2022-11-20 12:48:23,549 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/data/4df3c7fe4/926fcd8d7de44b2ebbd145228357f4b2 [2022-11-20 12:48:23,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:48:23,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:48:23,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:48:23,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:48:23,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:48:23,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f3a6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23, skipping insertion in model container [2022-11-20 12:48:23,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:48:23,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:48:23,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/sv-benchmarks/c/reducercommutativity/sep05-1.i[1287,1300] [2022-11-20 12:48:23,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:48:23,785 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:48:23,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/sv-benchmarks/c/reducercommutativity/sep05-1.i[1287,1300] [2022-11-20 12:48:23,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:48:23,830 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:48:23,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23 WrapperNode [2022-11-20 12:48:23,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:48:23,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:48:23,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:48:23,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:48:23,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,888 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-11-20 12:48:23,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:48:23,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:48:23,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:48:23,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:48:23,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:48:23,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:48:23,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:48:23,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:48:23,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (1/1) ... [2022-11-20 12:48:23,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:23,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:23,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:24,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:48:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:48:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:48:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:48:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:48:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:48:24,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:48:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:48:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:48:24,102 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:48:24,104 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:48:24,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:48:24,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:48:24,315 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 12:48:24,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:48:24 BoogieIcfgContainer [2022-11-20 12:48:24,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:48:24,319 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:48:24,319 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:48:24,323 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:48:24,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:48:24,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:48:23" (1/3) ... [2022-11-20 12:48:24,325 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:48:24, skipping insertion in model container [2022-11-20 12:48:24,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:48:24,325 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:23" (2/3) ... [2022-11-20 12:48:24,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:48:24, skipping insertion in model container [2022-11-20 12:48:24,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:48:24,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:48:24" (3/3) ... [2022-11-20 12:48:24,328 INFO L332 chiAutomizerObserver]: Analyzing ICFG sep05-1.i [2022-11-20 12:48:24,407 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:48:24,407 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:48:24,407 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:48:24,408 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:48:24,408 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:48:24,408 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:48:24,408 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:48:24,408 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:48:24,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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) [2022-11-20 12:48:24,455 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-11-20 12:48:24,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:24,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:24,461 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:48:24,462 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:48:24,462 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:48:24,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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) [2022-11-20 12:48:24,470 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-11-20 12:48:24,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:24,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:24,473 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:48:24,473 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:48:24,481 INFO L748 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 26#L37-3true [2022-11-20 12:48:24,481 INFO L750 eck$LassoCheckResult]: Loop: 26#L37-3true assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 17#L37-2true main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 26#L37-3true [2022-11-20 12:48:24,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 12:48:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276887848] [2022-11-20 12:48:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:24,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:24,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:24,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-11-20 12:48:24,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:24,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460579492] [2022-11-20 12:48:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:24,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:24,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:24,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:24,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-20 12:48:24,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:24,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166654418] [2022-11-20 12:48:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:24,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:24,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:24,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:25,072 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:48:25,078 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:48:25,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:48:25,078 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:48:25,079 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:48:25,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:25,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:48:25,079 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:48:25,079 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration1_Lasso [2022-11-20 12:48:25,079 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:48:25,080 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:48:25,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,143 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,402 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,405 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,409 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:25,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:48:25,751 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:48:25,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:25,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:25,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:25,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:48:25,847 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 [2022-11-20 12:48:25,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:25,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:25,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:25,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:25,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:25,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:25,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:25,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:25,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-20 12:48:25,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:25,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:25,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:25,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:48:25,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:25,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:25,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:25,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:25,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:25,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:25,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:25,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:48:25,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:25,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:25,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,004 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 [2022-11-20 12:48:26,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:26,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:26,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:26,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:26,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:26,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:26,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:48:26,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:26,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:26,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:26,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,055 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 [2022-11-20 12:48:26,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:48:26,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:26,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:26,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:26,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:26,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:26,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:26,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:26,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:26,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:26,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:26,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,104 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 [2022-11-20 12:48:26,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:26,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:26,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:26,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:26,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:26,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:26,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:26,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 12:48:26,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:26,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:26,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:26,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,149 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,157 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 [2022-11-20 12:48:26,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:26,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:26,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:26,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:26,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:26,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:26,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 12:48:26,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:26,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:26,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:26,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 12:48:26,223 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 [2022-11-20 12:48:26,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:26,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:26,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:26,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:26,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:26,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:26,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:26,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:26,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:26,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,260 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 12:48:26,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:48:26,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:26,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:26,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:26,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:26,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:26,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:26,297 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:48:26,317 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-20 12:48:26,317 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-11-20 12:48:26,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:26,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,369 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:26,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 12:48:26,380 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:48:26,391 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 12:48:26,391 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:48:26,392 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1) = -2*ULTIMATE.start_main_~i~1#1 + 9 Supporting invariants [] [2022-11-20 12:48:26,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-20 12:48:26,429 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2022-11-20 12:48:26,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:26,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:48:26,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:26,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:48:26,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:26,597 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 [2022-11-20 12:48:26,599 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:26,670 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 113 transitions. Complement of second has 7 states. [2022-11-20 12:48:26,672 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 [2022-11-20 12:48:26,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2022-11-20 12:48:26,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 76 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-20 12:48:26,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:26,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 76 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 12:48:26,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:26,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 76 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-20 12:48:26,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:26,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 113 transitions. [2022-11-20 12:48:26,685 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:26,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 22 states and 30 transitions. [2022-11-20 12:48:26,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-20 12:48:26,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-20 12:48:26,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2022-11-20 12:48:26,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:26,691 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-11-20 12:48:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2022-11-20 12:48:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-20 12:48:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 21 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) [2022-11-20 12:48:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2022-11-20 12:48:26,717 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-11-20 12:48:26,717 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-11-20 12:48:26,718 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:48:26,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2022-11-20 12:48:26,719 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:26,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:26,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:26,719 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:48:26,719 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:26,720 INFO L748 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 167#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 175#L37-3 assume !(main_~i~1#1 < 5); 180#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 181#L18-3 [2022-11-20 12:48:26,720 INFO L750 eck$LassoCheckResult]: Loop: 181#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 185#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 182#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 181#L18-3 [2022-11-20 12:48:26,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2022-11-20 12:48:26,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:26,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789067475] [2022-11-20 12:48:26,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:26,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:26,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789067475] [2022-11-20 12:48:26,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789067475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:26,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:26,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:48:26,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726614997] [2022-11-20 12:48:26,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:26,815 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:48:26,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2022-11-20 12:48:26,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:26,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112808649] [2022-11-20 12:48:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:26,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:26,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:26,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:26,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:26,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:26,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:26,919 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:26,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:26,931 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2022-11-20 12:48:26,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2022-11-20 12:48:26,932 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:26,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2022-11-20 12:48:26,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-20 12:48:26,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-20 12:48:26,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2022-11-20 12:48:26,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:26,933 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-20 12:48:26,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2022-11-20 12:48:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-20 12:48:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2022-11-20 12:48:26,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-11-20 12:48:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:26,937 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-11-20 12:48:26,937 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:48:26,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2022-11-20 12:48:26,938 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:26,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:26,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:26,938 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:48:26,938 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:26,939 INFO L748 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 226#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 215#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 216#L37-3 assume !(main_~i~1#1 < 5); 231#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 232#L18-3 [2022-11-20 12:48:26,939 INFO L750 eck$LassoCheckResult]: Loop: 232#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 235#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 233#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 232#L18-3 [2022-11-20 12:48:26,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:26,939 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2022-11-20 12:48:26,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:26,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854365207] [2022-11-20 12:48:26,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:26,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:26,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:26,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854365207] [2022-11-20 12:48:26,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854365207] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:48:26,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866571478] [2022-11-20 12:48:26,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:26,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:48:26,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:26,994 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:48:27,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 12:48:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:27,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:48:27,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:27,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:48:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:27,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866571478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:48:27,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:48:27,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-20 12:48:27,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097716573] [2022-11-20 12:48:27,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:48:27,092 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:48:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:27,092 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2022-11-20 12:48:27,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:27,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171905396] [2022-11-20 12:48:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:27,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:27,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:27,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:48:27,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:48:27,169 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:27,211 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-11-20 12:48:27,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2022-11-20 12:48:27,212 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:27,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 35 transitions. [2022-11-20 12:48:27,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-20 12:48:27,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-20 12:48:27,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2022-11-20 12:48:27,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:27,213 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-20 12:48:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2022-11-20 12:48:27,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-20 12:48:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 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) [2022-11-20 12:48:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-11-20 12:48:27,216 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-20 12:48:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:48:27,220 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-20 12:48:27,220 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 12:48:27,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2022-11-20 12:48:27,225 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:27,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:27,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:27,227 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2022-11-20 12:48:27,228 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:27,228 INFO L748 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 308#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 316#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 305#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 306#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 327#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 332#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 331#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 330#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 329#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 328#L37-3 assume !(main_~i~1#1 < 5); 321#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 322#L18-3 [2022-11-20 12:48:27,228 INFO L750 eck$LassoCheckResult]: Loop: 322#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 325#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 323#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 322#L18-3 [2022-11-20 12:48:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2022-11-20 12:48:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:27,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314725397] [2022-11-20 12:48:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:27,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:27,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:27,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314725397] [2022-11-20 12:48:27,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314725397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:48:27,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255735722] [2022-11-20 12:48:27,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:48:27,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:48:27,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:27,426 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:48:27,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 12:48:27,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:48:27,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:48:27,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:48:27,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:27,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:27,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:48:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:27,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255735722] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:48:27,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:48:27,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-11-20 12:48:27,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009989224] [2022-11-20 12:48:27,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:48:27,646 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:48:27,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:27,646 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2022-11-20 12:48:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:27,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067562231] [2022-11-20 12:48:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:27,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:27,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:27,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:48:27,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:48:27,735 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2022-11-20 12:48:27,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:27,773 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2022-11-20 12:48:27,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2022-11-20 12:48:27,780 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:27,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2022-11-20 12:48:27,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-20 12:48:27,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-20 12:48:27,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2022-11-20 12:48:27,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:27,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-20 12:48:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2022-11-20 12:48:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-20 12:48:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-11-20 12:48:27,789 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-20 12:48:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:48:27,790 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-11-20 12:48:27,791 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 12:48:27,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2022-11-20 12:48:27,791 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-20 12:48:27,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:27,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:27,792 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2022-11-20 12:48:27,792 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:27,792 INFO L748 eck$LassoCheckResult]: Stem: 442#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 443#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 451#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 440#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 441#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 462#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 469#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 468#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 467#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 466#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 465#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 464#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 463#L37-3 assume !(main_~i~1#1 < 5); 456#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 457#L18-3 [2022-11-20 12:48:27,793 INFO L750 eck$LassoCheckResult]: Loop: 457#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 460#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 458#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 457#L18-3 [2022-11-20 12:48:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:27,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 3 times [2022-11-20 12:48:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:27,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327690564] [2022-11-20 12:48:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:27,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:27,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:27,852 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2022-11-20 12:48:27,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:27,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829735202] [2022-11-20 12:48:27,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:27,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:27,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:27,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2022-11-20 12:48:27,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:27,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481126871] [2022-11-20 12:48:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:27,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:27,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:28,945 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:48:28,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:48:28,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:48:28,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:48:28,946 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:48:28,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:28,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:48:28,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:48:28,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration5_Lasso [2022-11-20 12:48:28,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:48:28,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:48:28,950 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:28,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:28,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:28,965 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:28,969 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:28,972 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:28,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,520 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,526 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,528 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,541 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,549 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,552 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,554 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:29,980 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:48:29,980 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:48:29,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:29,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:29,981 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:29,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 12:48:29,992 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 [2022-11-20 12:48:30,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:30,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:30,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:30,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,031 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 [2022-11-20 12:48:30,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:30,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:30,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:30,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 12:48:30,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,072 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:48:30,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 12:48:30,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:30,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:30,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,121 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,131 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 [2022-11-20 12:48:30,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:30,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:30,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:30,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 12:48:30,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,164 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,173 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 [2022-11-20 12:48:30,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:30,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:30,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:30,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 12:48:30,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,208 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,213 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 [2022-11-20 12:48:30,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:30,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:30,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:30,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 12:48:30,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,242 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,251 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 [2022-11-20 12:48:30,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:30,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:30,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 12:48:30,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,289 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,297 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 [2022-11-20 12:48:30,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 12:48:30,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:30,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:30,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,339 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,348 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 [2022-11-20 12:48:30,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 12:48:30,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:30,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:30,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,385 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,396 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 [2022-11-20 12:48:30,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:30,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 12:48:30,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:30,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,432 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,435 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 [2022-11-20 12:48:30,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:30,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:30,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:30,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:30,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 12:48:30,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:30,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:30,478 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:48:30,547 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2022-11-20 12:48:30,547 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. [2022-11-20 12:48:30,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:30,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:30,554 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:30,556 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:48:30,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 12:48:30,584 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 12:48:30,584 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:48:30,584 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sep_~i~0#1) = -2*ULTIMATE.start_sep_~i~0#1 + 9 Supporting invariants [] [2022-11-20 12:48:30,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:30,668 INFO L156 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2022-11-20 12:48:30,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:30,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:48:30,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:30,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:48:30,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:30,761 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 [2022-11-20 12:48:30,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:30,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 46 transitions. Complement of second has 7 states. [2022-11-20 12:48:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 12:48:30,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-20 12:48:30,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-20 12:48:30,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:30,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2022-11-20 12:48:30,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:30,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 6 letters. [2022-11-20 12:48:30,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:30,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2022-11-20 12:48:30,783 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:30,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 31 states and 39 transitions. [2022-11-20 12:48:30,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-20 12:48:30,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-20 12:48:30,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 39 transitions. [2022-11-20 12:48:30,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:30,785 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-11-20 12:48:30,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 39 transitions. [2022-11-20 12:48:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-20 12:48:30,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 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) [2022-11-20 12:48:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2022-11-20 12:48:30,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-11-20 12:48:30,787 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2022-11-20 12:48:30,788 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 12:48:30,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2022-11-20 12:48:30,788 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:30,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:30,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:30,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:30,789 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:30,790 INFO L748 eck$LassoCheckResult]: Stem: 673#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 674#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 682#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 671#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 672#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 694#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 701#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 700#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 699#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 698#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 697#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 696#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 695#L37-3 assume !(main_~i~1#1 < 5); 687#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 688#L18-3 assume !(sep_~i~0#1 < 5); 691#L18-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 675#L25 main_#t~ret7#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 676#L18-8 [2022-11-20 12:48:30,790 INFO L750 eck$LassoCheckResult]: Loop: 676#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 686#L20-2 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 693#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 676#L18-8 [2022-11-20 12:48:30,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:30,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1638581187, now seen corresponding path program 1 times [2022-11-20 12:48:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:30,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838893172] [2022-11-20 12:48:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:30,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 12:48:30,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838893172] [2022-11-20 12:48:30,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838893172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:30,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:30,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:48:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582197386] [2022-11-20 12:48:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:30,843 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:48:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 74576, now seen corresponding path program 1 times [2022-11-20 12:48:30,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:30,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636446704] [2022-11-20 12:48:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:30,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:30,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:30,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:30,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:30,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:30,907 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:30,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:30,934 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2022-11-20 12:48:30,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2022-11-20 12:48:30,935 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:30,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2022-11-20 12:48:30,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-11-20 12:48:30,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-11-20 12:48:30,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2022-11-20 12:48:30,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:30,937 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-11-20 12:48:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2022-11-20 12:48:30,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-11-20 12:48:30,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.21875) internal successors, (39), 31 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) [2022-11-20 12:48:30,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-11-20 12:48:30,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-20 12:48:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:30,942 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-20 12:48:30,943 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 12:48:30,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2022-11-20 12:48:30,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:30,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:30,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:30,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:30,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:30,947 INFO L748 eck$LassoCheckResult]: Stem: 749#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 750#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 758#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 747#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 748#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 771#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 778#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 777#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 776#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 775#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 774#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 773#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 772#L37-3 assume !(main_~i~1#1 < 5); 763#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 764#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 767#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 765#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 766#L18-3 assume !(sep_~i~0#1 < 5); 768#L18-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 751#L25 main_#t~ret7#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 752#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 761#L20-2 [2022-11-20 12:48:30,947 INFO L750 eck$LassoCheckResult]: Loop: 761#L20-2 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 769#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 770#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 761#L20-2 [2022-11-20 12:48:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1567455174, now seen corresponding path program 1 times [2022-11-20 12:48:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:30,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272398197] [2022-11-20 12:48:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:30,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 12:48:31,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:31,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272398197] [2022-11-20 12:48:31,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272398197] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:48:31,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526402959] [2022-11-20 12:48:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:31,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:48:31,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:31,075 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:48:31,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-20 12:48:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:31,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:48:31,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 12:48:31,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:48:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 12:48:31,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526402959] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:48:31,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:48:31,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-20 12:48:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466305780] [2022-11-20 12:48:31,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:48:31,211 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:48:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 2 times [2022-11-20 12:48:31,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:31,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432227393] [2022-11-20 12:48:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:31,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:31,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:31,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:48:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:48:31,302 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 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) [2022-11-20 12:48:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:31,382 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2022-11-20 12:48:31,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 76 transitions. [2022-11-20 12:48:31,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:31,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 60 states and 76 transitions. [2022-11-20 12:48:31,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-11-20 12:48:31,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2022-11-20 12:48:31,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 76 transitions. [2022-11-20 12:48:31,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:31,384 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 76 transitions. [2022-11-20 12:48:31,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 76 transitions. [2022-11-20 12:48:31,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-11-20 12:48:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.26) internal successors, (63), 49 states have internal predecessors, (63), 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) [2022-11-20 12:48:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-11-20 12:48:31,388 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-11-20 12:48:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:48:31,389 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-11-20 12:48:31,389 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-20 12:48:31,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 63 transitions. [2022-11-20 12:48:31,390 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:31,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:31,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:31,391 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:31,391 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:31,391 INFO L748 eck$LassoCheckResult]: Stem: 971#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 972#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 980#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 969#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 970#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 995#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1018#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1017#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1016#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1015#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1014#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1013#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1012#L37-3 assume !(main_~i~1#1 < 5); 986#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 987#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 990#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 988#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 989#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 991#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1009#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1007#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1005#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1003#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1002#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 997#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 998#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 996#L18-3 assume !(sep_~i~0#1 < 5); 992#L18-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 973#L25 main_#t~ret7#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 974#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 993#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 994#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 983#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 984#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1011#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1010#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1008#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1006#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1004#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1000#L20-2 [2022-11-20 12:48:31,392 INFO L750 eck$LassoCheckResult]: Loop: 1000#L20-2 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1001#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 999#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1000#L20-2 [2022-11-20 12:48:31,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:31,392 INFO L85 PathProgramCache]: Analyzing trace with hash -534676351, now seen corresponding path program 1 times [2022-11-20 12:48:31,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:31,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688226731] [2022-11-20 12:48:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:31,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:31,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 12:48:31,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:31,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688226731] [2022-11-20 12:48:31,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688226731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:48:31,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073921590] [2022-11-20 12:48:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:31,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:48:31,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:31,639 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:48:31,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-20 12:48:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:31,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:48:31,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 12:48:31,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:48:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 12:48:31,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073921590] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:48:31,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:48:31,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-11-20 12:48:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77287019] [2022-11-20 12:48:31,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:48:31,836 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:48:31,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 3 times [2022-11-20 12:48:31,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:31,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552046874] [2022-11-20 12:48:31,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:31,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:31,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:31,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:31,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:48:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:48:31,917 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. cyclomatic complexity: 18 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:32,000 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2022-11-20 12:48:32,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 88 transitions. [2022-11-20 12:48:32,001 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:32,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 88 transitions. [2022-11-20 12:48:32,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-20 12:48:32,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-11-20 12:48:32,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2022-11-20 12:48:32,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:32,003 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-20 12:48:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2022-11-20 12:48:32,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2022-11-20 12:48:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 55 states have internal predecessors, (71), 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) [2022-11-20 12:48:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-11-20 12:48:32,007 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-11-20 12:48:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:48:32,008 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-11-20 12:48:32,008 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-20 12:48:32,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 71 transitions. [2022-11-20 12:48:32,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 12:48:32,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:32,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:32,010 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:32,010 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 12:48:32,011 INFO L748 eck$LassoCheckResult]: Stem: 1329#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 1330#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1338#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1327#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1328#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1353#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1382#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1381#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1380#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1379#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1378#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1377#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1376#L37-3 assume !(main_~i~1#1 < 5); 1344#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1345#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1348#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1346#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1347#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1349#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1373#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1371#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1369#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1367#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1365#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1363#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1361#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1360#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1355#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1356#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1354#L18-3 assume !(sep_~i~0#1 < 5); 1350#L18-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1331#L25 main_#t~ret7#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1332#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1351#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1352#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1341#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1342#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1375#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1374#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1372#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1370#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1368#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1366#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1364#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1362#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1358#L20-2 [2022-11-20 12:48:32,011 INFO L750 eck$LassoCheckResult]: Loop: 1358#L20-2 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1359#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1357#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1358#L20-2 [2022-11-20 12:48:32,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1616244090, now seen corresponding path program 2 times [2022-11-20 12:48:32,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:32,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318997072] [2022-11-20 12:48:32,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:32,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:32,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:32,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:32,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:32,305 INFO L85 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 4 times [2022-11-20 12:48:32,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:32,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263896132] [2022-11-20 12:48:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:32,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:32,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:32,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1350622481, now seen corresponding path program 1 times [2022-11-20 12:48:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:32,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770019417] [2022-11-20 12:48:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:32,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 12:48:32,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:32,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770019417] [2022-11-20 12:48:32,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770019417] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:48:32,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314032923] [2022-11-20 12:48:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:32,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:48:32,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:32,522 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:48:32,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-20 12:48:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:32,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:48:32,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 12:48:32,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:48:32,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314032923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:32,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:48:32,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2022-11-20 12:48:32,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780970083] [2022-11-20 12:48:32,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:32,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:48:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:48:32,742 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. cyclomatic complexity: 20 Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:48:32,835 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2022-11-20 12:48:32,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 85 transitions. [2022-11-20 12:48:32,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 12:48:32,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 63 transitions. [2022-11-20 12:48:32,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-11-20 12:48:32,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-20 12:48:32,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2022-11-20 12:48:32,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:32,837 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 63 transitions. [2022-11-20 12:48:32,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2022-11-20 12:48:32,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 12:48:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 51 states have internal predecessors, (63), 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) [2022-11-20 12:48:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2022-11-20 12:48:32,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 63 transitions. [2022-11-20 12:48:32,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:48:32,841 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2022-11-20 12:48:32,841 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-20 12:48:32,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 63 transitions. [2022-11-20 12:48:32,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 12:48:32,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:48:32,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:48:32,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:32,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:48:32,843 INFO L748 eck$LassoCheckResult]: Stem: 1609#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 1610#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 1616#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1607#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1608#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1627#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1642#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1640#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1638#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1636#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1634#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 1631#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1630#L37-3 assume !(main_~i~1#1 < 5); 1619#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1620#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1658#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1621#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1622#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1623#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1628#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1657#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1656#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1655#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1654#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1653#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1652#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1651#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1650#L20 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1649#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1648#L18-3 assume !(sep_~i~0#1 < 5); 1624#L18-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1611#L25 main_#t~ret7#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem8#1;havoc main_#t~mem8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1612#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1617#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1625#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1626#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1647#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1646#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1645#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1644#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1643#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1641#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1639#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1637#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1635#L18-8 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1633#L20-2 assume !(0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2));havoc sep_#t~mem2#1;sep_#t~post4#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post4#1 - 1;havoc sep_#t~post4#1; 1632#L18-7 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 1629#L18-8 assume !(sep_~i~0#1 < 5); 1618#L18-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1613#L25-1 main_#t~ret10#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1;call main_#t~mem11#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem11#1;havoc main_#t~mem11#1;main_~i~2#1 := 0; 1614#L46-3 [2022-11-20 12:48:32,844 INFO L750 eck$LassoCheckResult]: Loop: 1614#L46-3 assume !!(main_~i~2#1 < 4);call main_#t~mem13#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~2#1), 4);call write~int(main_#t~mem13#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~2#1, 4);havoc main_#t~mem13#1; 1615#L46-2 main_#t~post12#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 1614#L46-3 [2022-11-20 12:48:32,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:32,844 INFO L85 PathProgramCache]: Analyzing trace with hash -866233935, now seen corresponding path program 1 times [2022-11-20 12:48:32,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:32,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232610469] [2022-11-20 12:48:32,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:32,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:32,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:33,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash 3075, now seen corresponding path program 1 times [2022-11-20 12:48:33,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:33,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234771308] [2022-11-20 12:48:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:33,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:33,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:33,020 INFO L85 PathProgramCache]: Analyzing trace with hash 772846003, now seen corresponding path program 1 times [2022-11-20 12:48:33,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:33,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133860594] [2022-11-20 12:48:33,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:33,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:33,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:48:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:48:33,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:48:38,413 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 448 DAG size of output: 327 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 12:48:39,423 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:48:39,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:48:39,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:48:39,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:48:39,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:48:39,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:39,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:48:39,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:48:39,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration10_Lasso [2022-11-20 12:48:39,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:48:39,424 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:48:39,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,431 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,456 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,459 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,477 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:39,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:41,040 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:41,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:48:41,891 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:48:41,891 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:48:41,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:41,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:41,902 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:41,908 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 [2022-11-20 12:48:41,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 12:48:41,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:41,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:41,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:41,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:41,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:41,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:41,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:41,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:41,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:41,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:41,925 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:41,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 12:48:41,928 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 [2022-11-20 12:48:41,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:41,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:41,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:41,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:41,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:41,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:41,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:41,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-11-20 12:48:41,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:41,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:41,948 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:41,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 12:48:41,952 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 [2022-11-20 12:48:41,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:41,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:41,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:41,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:41,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:41,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:41,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:41,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:41,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-20 12:48:41,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:41,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:41,970 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:41,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 12:48:41,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:48:41,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:41,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:41,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:41,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:41,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:41,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:41,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-20 12:48:42,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,007 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 12:48:42,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:48:42,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-20 12:48:42,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,025 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 12:48:42,034 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 [2022-11-20 12:48:42,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:42,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,055 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 12:48:42,060 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 [2022-11-20 12:48:42,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-20 12:48:42,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,077 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 12:48:42,081 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 [2022-11-20 12:48:42,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-11-20 12:48:42,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,097 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-20 12:48:42,101 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 [2022-11-20 12:48:42,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:42,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,125 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-20 12:48:42,127 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 [2022-11-20 12:48:42,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-11-20 12:48:42,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,143 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-20 12:48:42,146 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 [2022-11-20 12:48:42,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-11-20 12:48:42,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,166 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-20 12:48:42,174 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 [2022-11-20 12:48:42,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-11-20 12:48:42,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,206 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-20 12:48:42,209 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 [2022-11-20 12:48:42,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:42,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,228 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-20 12:48:42,231 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 [2022-11-20 12:48:42,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-20 12:48:42,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,259 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-20 12:48:42,262 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 [2022-11-20 12:48:42,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-20 12:48:42,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,280 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-20 12:48:42,282 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 [2022-11-20 12:48:42,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-11-20 12:48:42,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,298 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-20 12:48:42,301 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 [2022-11-20 12:48:42,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:42,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,335 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-20 12:48:42,341 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 [2022-11-20 12:48:42,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:48:42,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:48:42,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:48:42,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-11-20 12:48:42,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,358 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-20 12:48:42,361 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 [2022-11-20 12:48:42,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-11-20 12:48:42,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,393 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-20 12:48:42,403 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 [2022-11-20 12:48:42,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-11-20 12:48:42,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,423 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-20 12:48:42,425 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 [2022-11-20 12:48:42,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:48:42,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:42,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,446 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-20 12:48:42,448 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 [2022-11-20 12:48:42,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:48:42,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:48:42,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:48:42,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:48:42,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:48:42,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:48:42,479 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:48:42,499 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-20 12:48:42,499 INFO L444 ModelExtractionUtils]: 7 out of 25 variables were initially zero. Simplification set additionally 15 variables to zero. [2022-11-20 12:48:42,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:48:42,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:42,502 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:42,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-20 12:48:42,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:48:42,520 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 12:48:42,520 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:48:42,521 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~2#1) = -2*ULTIMATE.start_main_~i~2#1 + 7 Supporting invariants [] [2022-11-20 12:48:42,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:42,746 INFO L156 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2022-11-20 12:48:42,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:42,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:48:42,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:42,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:48:42,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:48:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:42,912 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 [2022-11-20 12:48:42,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-20 12:48:42,921 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 54 states and 66 transitions. Complement of second has 4 states. [2022-11-20 12:48:42,922 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 [2022-11-20 12:48:42,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-20 12:48:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2022-11-20 12:48:42,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 50 letters. Loop has 2 letters. [2022-11-20 12:48:42,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:42,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 52 letters. Loop has 2 letters. [2022-11-20 12:48:42,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:42,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 50 letters. Loop has 4 letters. [2022-11-20 12:48:42,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:48:42,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 66 transitions. [2022-11-20 12:48:42,925 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:48:42,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2022-11-20 12:48:42,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 12:48:42,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 12:48:42,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 12:48:42,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:42,926 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:48:42,926 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:48:42,926 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:48:42,926 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-20 12:48:42,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:48:42,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:48:42,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 12:48:42,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:48:42 BoogieIcfgContainer [2022-11-20 12:48:42,933 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:48:42,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:48:42,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:48:42,934 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:48:42,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:48:24" (3/4) ... [2022-11-20 12:48:42,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:48:42,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:48:42,939 INFO L158 Benchmark]: Toolchain (without parser) took 19385.56ms. Allocated memory was 121.6MB in the beginning and 222.3MB in the end (delta: 100.7MB). Free memory was 79.7MB in the beginning and 83.7MB in the end (delta: -4.0MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2022-11-20 12:48:42,939 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:48:42,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.18ms. Allocated memory is still 121.6MB. Free memory was 79.2MB in the beginning and 68.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:48:42,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.72ms. Allocated memory is still 121.6MB. Free memory was 68.7MB in the beginning and 67.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:48:42,940 INFO L158 Benchmark]: Boogie Preprocessor took 49.83ms. Allocated memory is still 121.6MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:48:42,940 INFO L158 Benchmark]: RCFGBuilder took 375.93ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 51.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:48:42,941 INFO L158 Benchmark]: BuchiAutomizer took 18615.02ms. Allocated memory was 121.6MB in the beginning and 222.3MB in the end (delta: 100.7MB). Free memory was 51.1MB in the beginning and 83.7MB in the end (delta: -32.5MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2022-11-20 12:48:42,941 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 222.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:48:42,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.18ms. Allocated memory is still 121.6MB. Free memory was 79.2MB in the beginning and 68.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.72ms. Allocated memory is still 121.6MB. Free memory was 68.7MB in the beginning and 67.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.83ms. Allocated memory is still 121.6MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.93ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 51.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 18615.02ms. Allocated memory was 121.6MB in the beginning and 222.3MB in the end (delta: 100.7MB). Free memory was 51.1MB in the beginning and 83.7MB in the end (delta: -32.5MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 222.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (7 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 9 + -2 * i and consists of 5 locations. One deterministic module has affine ranking function 9 + -2 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 7 and consists of 3 locations. 7 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.5s and 11 iterations. TraceHistogramMax:5. Analysis of lassos took 17.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 10. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 31 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, 243 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 701 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 451 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 226 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 250 mSDtfsCounter, 226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU6 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital294 mio100 ax100 hnf100 lsp94 ukn69 mio100 lsp35 div100 bol100 ite100 ukn100 eq171 hnf91 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 12:48:42,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:43,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:43,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-11-20 12:48:43,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-20 12:48:43,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-20 12:48:43,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-20 12:48:44,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b41598b-4288-4586-9989-0cbda98e1496/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE