./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/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_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/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_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/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 fb960067570884de0638f14e8f74b0912d9ff4ed83f9c3c33e6cd3e420d05661 --- 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 12:21:54,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:21:54,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:21:54,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:21:54,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:21:54,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:21:54,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:21:54,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:21:54,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:21:54,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:21:54,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:21:54,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:21:54,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:21:54,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:21:54,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:21:54,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:21:54,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:21:54,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:21:54,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:21:54,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:21:54,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:21:54,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:21:54,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:21:54,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:21:54,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:21:54,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:21:54,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:21:54,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:21:54,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:21:54,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:21:54,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:21:54,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:21:54,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:21:54,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:21:54,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:21:54,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:21:54,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:21:54,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:21:54,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:21:54,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:21:54,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:21:54,614 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 12:21:54,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:21:54,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:21:54,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:21:54,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:21:54,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:21:54,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:21:54,661 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:21:54,661 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:21:54,662 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:21:54,662 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:21:54,662 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:21:54,662 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:21:54,663 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:21:54,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:21:54,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:21:54,664 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:21:54,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:21:54,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:21:54,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:21:54,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:21:54,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:21:54,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:21:54,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:21:54,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:21:54,666 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:21:54,666 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:21:54,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:21:54,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:21:54,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:21:54,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:21:54,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:21:54,669 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:21:54,669 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_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb960067570884de0638f14e8f74b0912d9ff4ed83f9c3c33e6cd3e420d05661 [2022-11-20 12:21:54,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:21:55,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:21:55,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:21:55,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:21:55,036 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:21:55,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2022-11-20 12:21:58,863 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:21:59,182 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:21:59,183 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2022-11-20 12:21:59,191 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/data/8997132db/2352d845c86d4c29a875c0f6e22c39ff/FLAGa37270e21 [2022-11-20 12:21:59,206 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/data/8997132db/2352d845c86d4c29a875c0f6e22c39ff [2022-11-20 12:21:59,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:21:59,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:21:59,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:21:59,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:21:59,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:21:59,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360d0dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59, skipping insertion in model container [2022-11-20 12:21:59,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:21:59,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:21:59,443 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_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i[814,827] [2022-11-20 12:21:59,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:21:59,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:21:59,491 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_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i[814,827] [2022-11-20 12:21:59,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:21:59,512 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:21:59,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59 WrapperNode [2022-11-20 12:21:59,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:21:59,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:21:59,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:21:59,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:21:59,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,549 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-11-20 12:21:59,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:21:59,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:21:59,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:21:59,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:21:59,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:21:59,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:21:59,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:21:59,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:21:59,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (1/1) ... [2022-11-20 12:21:59,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:21:59,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:21:59,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:21:59,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:21:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:21:59,780 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:21:59,782 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:21:59,929 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:21:59,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:21:59,939 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:21:59,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:21:59 BoogieIcfgContainer [2022-11-20 12:21:59,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:21:59,944 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:21:59,944 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:21:59,949 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:21:59,950 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:21:59,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:21:59" (1/3) ... [2022-11-20 12:21:59,951 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66846f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:21:59, skipping insertion in model container [2022-11-20 12:21:59,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:21:59,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:59" (2/3) ... [2022-11-20 12:21:59,952 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66846f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:21:59, skipping insertion in model container [2022-11-20 12:21:59,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:21:59,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:21:59" (3/3) ... [2022-11-20 12:21:59,954 INFO L332 chiAutomizerObserver]: Analyzing ICFG array_assert_loop_dep.i [2022-11-20 12:22:00,087 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:22:00,088 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:22:00,088 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:22:00,088 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:22:00,089 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:22:00,089 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:22:00,089 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:22:00,089 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:22:00,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 12:22:00,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-20 12:22:00,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:00,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:00,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:22:00,126 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:22:00,126 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:22:00,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 12:22:00,128 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-20 12:22:00,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:00,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:00,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:22:00,129 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:22:00,139 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem3#1, main_#t~post2#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 12#L18-3true [2022-11-20 12:22:00,140 INFO L750 eck$LassoCheckResult]: Loop: 12#L18-3true assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 11#L18-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 12#L18-3true [2022-11-20 12:22:00,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:00,150 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 12:22:00,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:00,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374005990] [2022-11-20 12:22:00,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:00,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:00,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:00,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-11-20 12:22:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411197869] [2022-11-20 12:22:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:00,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:00,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:00,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:00,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:00,379 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-20 12:22:00,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:00,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458727052] [2022-11-20 12:22:00,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:00,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:00,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:00,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:00,927 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:22:00,928 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:22:00,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:22:00,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:22:00,929 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:22:00,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:00,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:22:00,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:22:00,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_assert_loop_dep.i_Iteration1_Lasso [2022-11-20 12:22:00,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:22:00,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:22:00,971 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 12:22:01,295 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 12:22:01,299 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 12:22:01,304 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 12:22:01,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:22:01,311 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 12:22:01,316 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 12:22:01,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:22:01,699 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:22:01,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:01,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:01,721 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 12:22:01,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:22:01,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:01,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:01,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:01,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:01,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:01,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:01,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:01,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:01,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:01,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:01,798 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 12:22:01,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:22:01,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:01,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:01,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:01,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:01,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:01,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:01,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:01,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:01,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:01,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:01,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:01,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:22:01,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:22:01,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:01,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:01,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:01,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:01,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:01,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:01,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:01,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:01,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:01,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:01,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:01,949 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 12:22:01,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:22:01,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:01,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:01,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:01,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:01,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:01,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:01,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:01,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:01,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:02,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:02,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:02,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 12:22:02,009 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 12:22:02,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:02,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:02,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:02,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:02,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:02,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:02,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:02,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:02,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:02,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:02,084 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 12:22:02,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:02,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:02,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:02,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:02,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 12:22:02,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:02,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:02,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:02,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:02,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:02,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:02,138 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:02,148 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 12:22:02,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 12:22:02,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:02,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:02,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:02,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:02,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:02,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:02,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:02,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:02,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:02,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:02,196 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:02,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:22:02,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 12:22:02,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:02,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:02,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:02,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:02,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:02,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:02,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:22:02,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:02,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:02,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:02,262 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:02,268 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 12:22:02,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 12:22:02,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:22:02,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:22:02,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:22:02,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:22:02,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 12:22:02,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 12:22:02,318 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:22:02,388 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-11-20 12:22:02,388 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-11-20 12:22:02,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:22:02,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:02,426 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:22:02,435 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:22:02,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 12:22:02,471 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 12:22:02,472 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:22:02,472 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1) = -8*ULTIMATE.start_main_~i~0#1 + 199999*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 Supporting invariants [] [2022-11-20 12:22:02,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:02,515 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2022-11-20 12:22:02,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:02,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:22:02,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:02,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:22:02,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:02,661 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 12:22:02,713 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 12:22:02,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) 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 12:22:02,777 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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). 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 29 states and 41 transitions. Complement of second has 8 states. [2022-11-20 12:22:02,783 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 12:22:02,789 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 12:22:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-11-20 12:22:02,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-20 12:22:02,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:22:02,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 12:22:02,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:22:02,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-20 12:22:02,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:22:02,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2022-11-20 12:22:02,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:22:02,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 12 states and 16 transitions. [2022-11-20 12:22:02,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-20 12:22:02,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-20 12:22:02,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-11-20 12:22:02,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:22:02,803 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-20 12:22:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-11-20 12:22:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 12:22:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:22:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-20 12:22:02,838 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-20 12:22:02,838 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-20 12:22:02,838 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:22:02,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-11-20 12:22:02,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 12:22:02,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:02,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:02,840 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:22:02,840 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:22:02,841 INFO L748 eck$LassoCheckResult]: Stem: 106#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(24, 2); 107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem3#1, main_#t~post2#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 110#L18-3 assume !(main_~i~0#1 < 100000); 111#L18-4 main_~i~0#1 := 0; 112#L22-3 [2022-11-20 12:22:02,841 INFO L750 eck$LassoCheckResult]: Loop: 112#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 105#L13 assume !(0 == __VERIFIER_assert_~cond#1); 104#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 113#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 114#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 112#L22-3 [2022-11-20 12:22:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:02,842 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2022-11-20 12:22:02,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:02,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448026194] [2022-11-20 12:22:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:02,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:02,976 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 12:22:02,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:22:02,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448026194] [2022-11-20 12:22:02,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448026194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:22:02,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:22:02,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:22:02,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569429636] [2022-11-20 12:22:02,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:22:02,981 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:22:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash 51750045, now seen corresponding path program 1 times [2022-11-20 12:22:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:02,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915135447] [2022-11-20 12:22:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:02,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:02,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:03,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:03,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:22:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:22:03,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:22:03,214 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 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 12:22:03,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:03,250 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-20 12:22:03,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2022-11-20 12:22:03,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:22:03,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 19 transitions. [2022-11-20 12:22:03,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 12:22:03,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-20 12:22:03,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2022-11-20 12:22:03,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:22:03,253 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-20 12:22:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2022-11-20 12:22:03,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 12:22:03,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:22:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-20 12:22:03,255 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-20 12:22:03,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:22:03,257 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-20 12:22:03,257 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:22:03,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2022-11-20 12:22:03,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:22:03,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:03,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:03,259 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:22:03,259 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:22:03,259 INFO L748 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem3#1, main_#t~post2#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 146#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 144#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 145#L18-3 assume !(main_~i~0#1 < 100000); 147#L18-4 main_~i~0#1 := 0; 148#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 154#L13 assume !(0 == __VERIFIER_assert_~cond#1); 153#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 149#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 150#L22-2 [2022-11-20 12:22:03,259 INFO L750 eck$LassoCheckResult]: Loop: 150#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 152#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 140#L13 assume !(0 == __VERIFIER_assert_~cond#1); 141#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 151#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 150#L22-2 [2022-11-20 12:22:03,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1436006135, now seen corresponding path program 1 times [2022-11-20 12:22:03,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:03,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527772721] [2022-11-20 12:22:03,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:03,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:03,387 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 12:22:03,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:22:03,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527772721] [2022-11-20 12:22:03,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527772721] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:22:03,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580004391] [2022-11-20 12:22:03,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:03,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:22:03,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:03,390 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:22:03,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 12:22:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:03,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:22:03,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:03,511 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 12:22:03,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:22:03,549 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 12:22:03,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580004391] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:22:03,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:22:03,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-20 12:22:03,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246327905] [2022-11-20 12:22:03,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:22:03,551 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:22:03,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 2 times [2022-11-20 12:22:03,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:03,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879377759] [2022-11-20 12:22:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:03,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:03,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:03,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:03,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:22:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:22:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:22:03,834 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:22:03,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:03,928 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-20 12:22:03,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 36 transitions. [2022-11-20 12:22:03,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-20 12:22:03,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 36 transitions. [2022-11-20 12:22:03,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-20 12:22:03,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-11-20 12:22:03,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 36 transitions. [2022-11-20 12:22:03,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:22:03,977 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-20 12:22:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 36 transitions. [2022-11-20 12:22:03,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2022-11-20 12:22:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 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 12:22:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-20 12:22:03,981 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-20 12:22:03,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:22:03,999 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-20 12:22:04,000 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 12:22:04,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 28 transitions. [2022-11-20 12:22:04,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:22:04,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:04,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:04,002 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:22:04,002 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:22:04,002 INFO L748 eck$LassoCheckResult]: Stem: 252#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(24, 2); 253#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem3#1, main_#t~post2#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 258#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 259#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 260#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 256#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 257#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 270#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 269#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 268#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 267#L18-3 assume !(main_~i~0#1 < 100000); 261#L18-4 main_~i~0#1 := 0; 262#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 254#L13 assume !(0 == __VERIFIER_assert_~cond#1); 255#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 265#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 274#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 275#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 277#L13 assume !(0 == __VERIFIER_assert_~cond#1); 276#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 263#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 264#L22-2 [2022-11-20 12:22:04,003 INFO L750 eck$LassoCheckResult]: Loop: 264#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 266#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 273#L13 assume !(0 == __VERIFIER_assert_~cond#1); 272#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 271#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 264#L22-2 [2022-11-20 12:22:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1930352971, now seen corresponding path program 1 times [2022-11-20 12:22:04,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:04,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109346122] [2022-11-20 12:22:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:04,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:04,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:22:04,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:22:04,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109346122] [2022-11-20 12:22:04,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109346122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:22:04,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368203702] [2022-11-20 12:22:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:04,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:22:04,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:04,377 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:22:04,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 12:22:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:04,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:22:04,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:22:04,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:22:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:22:04,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368203702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:22:04,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:22:04,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-20 12:22:04,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477670689] [2022-11-20 12:22:04,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:22:04,645 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:22:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:04,646 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 3 times [2022-11-20 12:22:04,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:04,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094969529] [2022-11-20 12:22:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:04,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:04,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:04,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:22:04,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:22:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:22:04,891 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. cyclomatic complexity: 4 Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 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 12:22:05,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:05,094 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2022-11-20 12:22:05,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 81 transitions. [2022-11-20 12:22:05,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2022-11-20 12:22:05,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 75 states and 81 transitions. [2022-11-20 12:22:05,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2022-11-20 12:22:05,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2022-11-20 12:22:05,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 81 transitions. [2022-11-20 12:22:05,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:22:05,100 INFO L218 hiAutomatonCegarLoop]: Abstraction has 75 states and 81 transitions. [2022-11-20 12:22:05,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 81 transitions. [2022-11-20 12:22:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 53. [2022-11-20 12:22:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 52 states have internal predecessors, (55), 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 12:22:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-11-20 12:22:05,107 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-11-20 12:22:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:22:05,108 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-11-20 12:22:05,109 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 12:22:05,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 55 transitions. [2022-11-20 12:22:05,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:22:05,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:05,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:05,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-11-20 12:22:05,112 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:22:05,113 INFO L748 eck$LassoCheckResult]: Stem: 489#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(24, 2); 490#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem3#1, main_#t~post2#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 495#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 496#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 497#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 493#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 494#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 520#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 519#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 518#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 517#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 516#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 515#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 514#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 513#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 512#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 511#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 510#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 509#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 508#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 507#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 506#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 505#L18-3 assume !(main_~i~0#1 < 100000); 498#L18-4 main_~i~0#1 := 0; 499#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 503#L13 assume !(0 == __VERIFIER_assert_~cond#1); 541#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 540#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 524#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 525#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 491#L13 assume !(0 == __VERIFIER_assert_~cond#1); 492#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 502#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 526#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 539#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 538#L13 assume !(0 == __VERIFIER_assert_~cond#1); 537#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 536#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 535#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 534#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 533#L13 assume !(0 == __VERIFIER_assert_~cond#1); 532#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 531#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 530#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 529#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 528#L13 assume !(0 == __VERIFIER_assert_~cond#1); 527#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 500#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 501#L22-2 [2022-11-20 12:22:05,113 INFO L750 eck$LassoCheckResult]: Loop: 501#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 504#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 523#L13 assume !(0 == __VERIFIER_assert_~cond#1); 522#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 521#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 501#L22-2 [2022-11-20 12:22:05,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1653685129, now seen corresponding path program 2 times [2022-11-20 12:22:05,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:05,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934887528] [2022-11-20 12:22:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:05,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:22:05,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:22:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934887528] [2022-11-20 12:22:05,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934887528] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:22:05,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216756003] [2022-11-20 12:22:05,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:22:05,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:22:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:05,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:22:05,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 12:22:05,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:22:05,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:22:05,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:22:05,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:22:05,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:22:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-20 12:22:06,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216756003] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:22:06,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:22:06,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-20 12:22:06,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833505155] [2022-11-20 12:22:06,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:22:06,032 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:22:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:06,033 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 4 times [2022-11-20 12:22:06,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:06,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121366878] [2022-11-20 12:22:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:06,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:06,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:06,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:06,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:22:06,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:22:06,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:22:06,275 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. cyclomatic complexity: 4 Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 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 12:22:06,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:06,696 INFO L93 Difference]: Finished difference Result 159 states and 171 transitions. [2022-11-20 12:22:06,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 171 transitions. [2022-11-20 12:22:06,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-11-20 12:22:06,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 171 transitions. [2022-11-20 12:22:06,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 115 [2022-11-20 12:22:06,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2022-11-20 12:22:06,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 171 transitions. [2022-11-20 12:22:06,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:22:06,720 INFO L218 hiAutomatonCegarLoop]: Abstraction has 159 states and 171 transitions. [2022-11-20 12:22:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 171 transitions. [2022-11-20 12:22:06,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 107. [2022-11-20 12:22:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.0186915887850467) internal successors, (109), 106 states have internal predecessors, (109), 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 12:22:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2022-11-20 12:22:06,737 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 109 transitions. [2022-11-20 12:22:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 12:22:06,740 INFO L428 stractBuchiCegarLoop]: Abstraction has 107 states and 109 transitions. [2022-11-20 12:22:06,741 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 12:22:06,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 109 transitions. [2022-11-20 12:22:06,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:22:06,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:22:06,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:22:06,750 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2022-11-20 12:22:06,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 12:22:06,753 INFO L748 eck$LassoCheckResult]: Stem: 1011#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(24, 2); 1012#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem3#1, main_#t~post2#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 1017#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1018#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1019#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1015#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1016#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1066#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1065#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1064#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1063#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1062#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1061#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1060#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1059#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1058#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1057#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1056#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1055#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1054#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1053#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1052#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1051#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1050#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1049#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1048#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1047#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1046#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1045#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1044#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1043#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1042#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1041#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1040#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1039#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1038#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1037#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1036#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1035#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1034#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1033#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1032#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1031#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1030#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1029#L18-3 assume !!(main_~i~0#1 < 100000);call write~int(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1028#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1027#L18-3 assume !(main_~i~0#1 < 100000); 1020#L18-4 main_~i~0#1 := 0; 1021#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1025#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1117#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1116#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1070#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1071#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1013#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1014#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1024#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1072#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1115#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1114#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1113#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1112#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1111#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1110#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1109#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1108#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1107#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1106#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1105#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1104#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1103#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1102#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1101#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1100#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1099#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1098#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1097#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1096#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1095#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1094#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1093#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1092#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1091#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1090#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1089#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1088#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1087#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1086#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1085#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1084#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1083#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1082#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1081#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1080#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1079#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1078#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1077#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1076#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1075#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1074#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1073#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1022#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1023#L22-2 [2022-11-20 12:22:06,758 INFO L750 eck$LassoCheckResult]: Loop: 1023#L22-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1026#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem3#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem3#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1069#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1068#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem3#1; 1067#L25 assume 15000 != 1 + main_~i~0#1;call write~int(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1023#L22-2 [2022-11-20 12:22:06,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:06,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1459869857, now seen corresponding path program 3 times [2022-11-20 12:22:06,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:06,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882126209] [2022-11-20 12:22:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:06,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-20 12:22:08,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:22:08,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882126209] [2022-11-20 12:22:08,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882126209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:22:08,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447683394] [2022-11-20 12:22:08,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:22:08,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:22:08,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:22:08,103 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:22:08,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 12:22:08,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 12:22:08,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:22:08,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:22:08,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:08,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-20 12:22:08,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-11-20 12:22:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-11-20 12:22:08,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:22:08,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447683394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:22:08,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:22:08,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 28 [2022-11-20 12:22:08,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576105327] [2022-11-20 12:22:08,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:22:08,427 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 12:22:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 66315825, now seen corresponding path program 5 times [2022-11-20 12:22:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:22:08,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956556932] [2022-11-20 12:22:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:22:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:08,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:22:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:22:08,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:22:08,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:22:08,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:22:08,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=450, Unknown=0, NotChecked=0, Total=756 [2022-11-20 12:22:08,646 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:22:08,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:08,709 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2022-11-20 12:22:08,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 55 transitions. [2022-11-20 12:22:08,710 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:22:08,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2022-11-20 12:22:08,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 12:22:08,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 12:22:08,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 12:22:08,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:22:08,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:22:08,711 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:22:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:22:08,712 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:22:08,712 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 12:22:08,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:22:08,712 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 12:22:08,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 12:22:08,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:22:08 BoogieIcfgContainer [2022-11-20 12:22:08,722 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:22:08,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:22:08,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:22:08,723 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:22:08,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:21:59" (3/4) ... [2022-11-20 12:22:08,728 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:22:08,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:22:08,729 INFO L158 Benchmark]: Toolchain (without parser) took 9517.97ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 143.6MB in the beginning and 69.0MB in the end (delta: 74.7MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. [2022-11-20 12:22:08,729 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 176.2MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:22:08,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.19ms. Allocated memory is still 176.2MB. Free memory was 143.6MB in the beginning and 133.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:22:08,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.97ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 132.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:22:08,731 INFO L158 Benchmark]: Boogie Preprocessor took 29.25ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 131.0MB in the end (delta: 956.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:22:08,731 INFO L158 Benchmark]: RCFGBuilder took 362.40ms. Allocated memory is still 176.2MB. Free memory was 131.0MB in the beginning and 121.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:22:08,732 INFO L158 Benchmark]: BuchiAutomizer took 8778.41ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 121.1MB in the beginning and 69.0MB in the end (delta: 52.2MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2022-11-20 12:22:08,732 INFO L158 Benchmark]: Witness Printer took 5.17ms. Allocated memory is still 218.1MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:22:08,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 176.2MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.19ms. Allocated memory is still 176.2MB. Free memory was 143.6MB in the beginning and 133.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.97ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 132.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.25ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 131.0MB in the end (delta: 956.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.40ms. Allocated memory is still 176.2MB. Free memory was 131.0MB in the beginning and 121.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 8778.41ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 121.1MB in the beginning and 69.0MB in the end (delta: 52.2MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Witness Printer took 5.17ms. Allocated memory is still 218.1MB. Free memory is still 69.0MB. 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 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 199999 * unknown-#length-unknown[a] + -8 * i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 25 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 7 iterations. TraceHistogramMax:22. Analysis of lassos took 7.2s. Construction of modules took 0.5s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 83 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 396 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 395 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 153 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 153 mSolverCounterUnsat, 39 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU5 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital121 mio100 ax100 hnf100 lsp95 ukn80 mio100 lsp41 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 71ms VariablesStem: 2 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 12:22:08,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:08,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:09,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:09,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:22:09,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8840aaa-5a0c-4720-8ebc-67a75dcec7dc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE