./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/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_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- 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 09:27:09,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:09,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:09,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:09,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:09,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:09,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:09,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:09,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:09,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:09,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:09,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:09,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:09,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:09,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:09,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:09,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:09,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:09,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:09,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:09,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:09,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:09,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:09,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:09,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:09,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:09,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:09,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:09,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:09,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:09,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:09,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:09,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:09,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:09,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:09,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:09,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:09,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:09,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:09,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:09,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:09,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:27:09,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:09,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:09,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:09,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:09,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:09,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:09,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:09,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:09,328 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:09,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:09,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:09,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:09,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:09,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:09,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:09,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:09,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:09,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:09,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:09,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:09,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:09,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:09,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:09,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:09,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:09,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:09,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:09,333 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:09,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:09,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:09,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3b6c65c7-0265-497a-a58c-a048e279f462/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2022-11-20 09:27:09,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:09,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:09,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:09,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:09,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:09,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-11-20 09:27:12,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:13,487 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:13,489 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-11-20 09:27:13,543 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data/9a0a68a55/bb6fb493ecbb4fe793ed44b17e785a9e/FLAG9996e186e [2022-11-20 09:27:13,568 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data/9a0a68a55/bb6fb493ecbb4fe793ed44b17e785a9e [2022-11-20 09:27:13,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:13,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:13,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:13,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:13,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:13,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:13" (1/1) ... [2022-11-20 09:27:13,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b63f22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:13, skipping insertion in model container [2022-11-20 09:27:13,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:13" (1/1) ... [2022-11-20 09:27:13,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:13,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:14,502 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 09:27:14,509 INFO L158 Benchmark]: Toolchain (without parser) took 931.11ms. Allocated memory is still 169.9MB. Free memory was 119.8MB in the beginning and 118.3MB in the end (delta: 1.6MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-11-20 09:27:14,510 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:14,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 925.88ms. Allocated memory is still 169.9MB. Free memory was 119.8MB in the beginning and 118.3MB in the end (delta: 1.6MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-11-20 09:27:14,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 925.88ms. Allocated memory is still 169.9MB. Free memory was 119.8MB in the beginning and 118.3MB in the end (delta: 1.6MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/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_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- 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 09:27:16,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:16,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:16,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:16,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:16,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:16,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:16,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:16,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:16,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:16,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:16,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:16,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:16,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:16,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:16,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:16,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:16,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:16,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:16,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:16,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:16,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:16,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:16,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:16,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:16,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:16,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:16,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:16,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:16,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:16,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:16,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:16,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:16,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:16,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:16,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:16,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:16,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:16,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:16,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:16,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:16,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:27:16,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:16,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:16,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:17,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:17,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:17,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:17,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:17,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:17,002 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:17,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:17,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:17,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:17,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:17,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:17,003 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:17,003 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:27:17,004 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:27:17,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:17,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:17,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:17,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:17,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:17,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:17,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:17,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:17,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:17,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:17,006 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:27:17,006 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:27:17,007 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:17,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:17,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:17,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:27:17,007 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3b6c65c7-0265-497a-a58c-a048e279f462/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2022-11-20 09:27:17,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:17,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:17,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:17,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:17,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:17,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-11-20 09:27:20,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:21,449 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:21,449 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-11-20 09:27:21,505 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data/22ff0bffc/ecc9b2ba60ec4c10a2e770f01dae5bb8/FLAG462449102 [2022-11-20 09:27:21,534 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/data/22ff0bffc/ecc9b2ba60ec4c10a2e770f01dae5bb8 [2022-11-20 09:27:21,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:21,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:21,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:21,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:21,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:21,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:21" (1/1) ... [2022-11-20 09:27:21,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed8211d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:21, skipping insertion in model container [2022-11-20 09:27:21,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:21" (1/1) ... [2022-11-20 09:27:21,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:21,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:24,675 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_3b6c65c7-0265-497a-a58c-a048e279f462/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2022-11-20 09:27:24,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:24,887 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:27:24,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:25,589 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_3b6c65c7-0265-497a-a58c-a048e279f462/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2022-11-20 09:27:25,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:25,626 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:26,517 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_3b6c65c7-0265-497a-a58c-a048e279f462/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2022-11-20 09:27:26,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:26,737 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:26,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26 WrapperNode [2022-11-20 09:27:26,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:26,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:26,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:26,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:26,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:26,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,064 INFO L138 Inliner]: procedures = 371, calls = 3822, calls flagged for inlining = 167, calls inlined = 133, statements flattened = 7127 [2022-11-20 09:27:27,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:27,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:27,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:27,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:27,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,412 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:27,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:27,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:27,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:27,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (1/1) ... [2022-11-20 09:27:27,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:27,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:27,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:27,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-11-20 09:27:27,595 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-11-20 09:27:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:27:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-11-20 09:27:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-11-20 09:27:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:27:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-20 09:27:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:27:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:27:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:27:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:27:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-11-20 09:27:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-11-20 09:27:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 09:27:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 09:27:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 09:27:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 09:27:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 09:27:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 09:27:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2022-11-20 09:27:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2022-11-20 09:27:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure irq_test [2022-11-20 09:27:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_test [2022-11-20 09:27:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2022-11-20 09:27:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2022-11-20 09:27:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2022-11-20 09:27:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2022-11-20 09:27:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:27:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:27:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure flush_chars [2022-11-20 09:27:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_chars [2022-11-20 09:27:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-20 09:27:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-20 09:27:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 09:27:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 09:27:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 09:27:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 09:27:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2022-11-20 09:27:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2022-11-20 09:27:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure sca_init [2022-11-20 09:27:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure sca_init [2022-11-20 09:27:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 09:27:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 09:27:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 09:27:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 09:27:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:27:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:27:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure chars_in_buffer [2022-11-20 09:27:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure chars_in_buffer [2022-11-20 09:27:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 09:27:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 09:27:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 09:27:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 09:27:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2022-11-20 09:27:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2022-11-20 09:27:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2022-11-20 09:27:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2022-11-20 09:27:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 09:27:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 09:27:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-11-20 09:27:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-11-20 09:27:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:27:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:27:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure set_break [2022-11-20 09:27:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure set_break [2022-11-20 09:27:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2022-11-20 09:27:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2022-11-20 09:27:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 09:27:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2022-11-20 09:27:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2022-11-20 09:27:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_frame_bufs [2022-11-20 09:27:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_frame_bufs [2022-11-20 09:27:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure rx_free_frame_buffers [2022-11-20 09:27:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_free_frame_buffers [2022-11-20 09:27:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:27:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2022-11-20 09:27:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2022-11-20 09:27:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-20 09:27:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-20 09:27:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:27:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:27:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure synclinkmp_cleanup [2022-11-20 09:27:27,615 INFO L138 BoogieDeclarations]: Found implementation of procedure synclinkmp_cleanup [2022-11-20 09:27:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:27:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:27:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:27:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2022-11-20 09:27:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2022-11-20 09:27:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:27:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2022-11-20 09:27:27,616 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2022-11-20 09:27:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 09:27:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 09:27:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:27:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2022-11-20 09:27:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2022-11-20 09:27:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 09:27:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 09:27:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:27:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:27:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:27:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2022-11-20 09:27:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2022-11-20 09:27:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:27:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-20 09:27:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-20 09:27:27,619 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:27:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:27:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2022-11-20 09:27:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2022-11-20 09:27:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 09:27:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 09:27:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-11-20 09:27:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-11-20 09:27:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 09:27:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 09:27:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2022-11-20 09:27:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2022-11-20 09:27:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_test [2022-11-20 09:27:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_test [2022-11-20 09:27:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 09:27:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 09:27:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2022-11-20 09:27:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2022-11-20 09:27:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 09:27:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 09:27:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 09:27:27,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 09:27:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-20 09:27:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-20 09:27:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2022-11-20 09:27:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2022-11-20 09:27:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2022-11-20 09:27:27,627 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2022-11-20 09:27:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 09:27:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 09:27:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 09:27:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 09:27:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-20 09:27:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-20 09:27:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2022-11-20 09:27:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2022-11-20 09:27:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure set_termios [2022-11-20 09:27:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure set_termios [2022-11-20 09:27:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:27:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:27:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write_room [2022-11-20 09:27:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure write_room [2022-11-20 09:27:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2022-11-20 09:27:27,629 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2022-11-20 09:27:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure install [2022-11-20 09:27:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure install [2022-11-20 09:27:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2022-11-20 09:27:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2022-11-20 09:27:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 09:27:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 09:27:27,631 INFO L130 BoogieDeclarations]: Found specification of procedure throttle [2022-11-20 09:27:27,631 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle [2022-11-20 09:27:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-20 09:27:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-20 09:27:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:27:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:27:27,632 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_fifo [2022-11-20 09:27:27,632 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_fifo [2022-11-20 09:27:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2022-11-20 09:27:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2022-11-20 09:27:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 09:27:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 09:27:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_dma_buffer [2022-11-20 09:27:27,633 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_dma_buffer [2022-11-20 09:27:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:27:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:27:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:27:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2022-11-20 09:27:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2022-11-20 09:27:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:27:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2022-11-20 09:27:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2022-11-20 09:27:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:27:27,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:27:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2022-11-20 09:27:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2022-11-20 09:27:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 09:27:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 09:27:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:27,636 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-11-20 09:27:27,636 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-11-20 09:27:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure register_test [2022-11-20 09:27:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure register_test [2022-11-20 09:27:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2022-11-20 09:27:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2022-11-20 09:27:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:27,637 INFO L130 BoogieDeclarations]: Found specification of procedure hangup [2022-11-20 09:27:27,637 INFO L138 BoogieDeclarations]: Found implementation of procedure hangup [2022-11-20 09:27:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 09:27:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:27:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:27:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:27:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure get_icount [2022-11-20 09:27:27,638 INFO L138 BoogieDeclarations]: Found implementation of procedure get_icount [2022-11-20 09:27:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ops_disconnect_1 [2022-11-20 09:27:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ops_disconnect_1 [2022-11-20 09:27:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure write_control_reg [2022-11-20 09:27:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure write_control_reg [2022-11-20 09:27:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2022-11-20 09:27:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2022-11-20 09:27:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure unthrottle [2022-11-20 09:27:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure unthrottle [2022-11-20 09:27:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2022-11-20 09:27:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2022-11-20 09:27:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 09:27:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 09:27:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 09:27:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 09:27:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_mode [2022-11-20 09:27:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_mode [2022-11-20 09:27:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure rx_get_frame [2022-11-20 09:27:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_get_frame [2022-11-20 09:27:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2022-11-20 09:27:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2022-11-20 09:27:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 09:27:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 09:27:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2022-11-20 09:27:27,642 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2022-11-20 09:27:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 09:27:27,642 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 09:27:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2022-11-20 09:27:27,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2022-11-20 09:27:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-11-20 09:27:27,642 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-11-20 09:27:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg16 [2022-11-20 09:27:27,643 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg16 [2022-11-20 09:27:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 09:27:27,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 09:27:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2022-11-20 09:27:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2022-11-20 09:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 09:27:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 09:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-20 09:27:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-20 09:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2022-11-20 09:27:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2022-11-20 09:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2022-11-20 09:27:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2022-11-20 09:27:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2022-11-20 09:27:27,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2022-11-20 09:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:27,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read_status_reg [2022-11-20 09:27:27,716 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status_reg [2022-11-20 09:27:28,815 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:28,822 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:14,579 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:14,603 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:14,603 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:29:14,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:14 BoogieIcfgContainer [2022-11-20 09:29:14,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:14,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:14,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:14,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:14,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:21" (1/3) ... [2022-11-20 09:29:14,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fdf4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:14, skipping insertion in model container [2022-11-20 09:29:14,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:26" (2/3) ... [2022-11-20 09:29:14,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fdf4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:14, skipping insertion in model container [2022-11-20 09:29:14,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:14" (3/3) ... [2022-11-20 09:29:14,621 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-11-20 09:29:14,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:14,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:29:14,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:14,760 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@89759da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:14,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:29:14,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) [2022-11-20 09:29:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 09:29:14,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:14,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:14,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:14,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:14,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1191751299, now seen corresponding path program 1 times [2022-11-20 09:29:14,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:14,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697949374] [2022-11-20 09:29:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:14,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:14,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:14,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:14,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:29:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:16,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:16,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:17,030 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 09:29:17,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:17,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:17,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697949374] [2022-11-20 09:29:17,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697949374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:17,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:17,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:17,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747085230] [2022-11-20 09:29:17,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:17,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:17,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:17,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:17,082 INFO L87 Difference]: Start difference. First operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:17,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:17,748 INFO L93 Difference]: Finished difference Result 5608 states and 8514 transitions. [2022-11-20 09:29:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:17,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 09:29:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:17,801 INFO L225 Difference]: With dead ends: 5608 [2022-11-20 09:29:17,801 INFO L226 Difference]: Without dead ends: 2800 [2022-11-20 09:29:17,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:17,833 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 4207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:17,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4207 Valid, 4224 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:29:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2022-11-20 09:29:18,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2800. [2022-11-20 09:29:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 1981 states have (on average 1.4174659262998486) internal successors, (2808), 2035 states have internal predecessors, (2808), 709 states have call successors, (709), 110 states have call predecessors, (709), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2022-11-20 09:29:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4221 transitions. [2022-11-20 09:29:18,187 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4221 transitions. Word has length 21 [2022-11-20 09:29:18,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:18,188 INFO L495 AbstractCegarLoop]: Abstraction has 2800 states and 4221 transitions. [2022-11-20 09:29:18,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4221 transitions. [2022-11-20 09:29:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 09:29:18,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:18,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:18,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:18,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:18,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:18,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:18,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1711631940, now seen corresponding path program 1 times [2022-11-20 09:29:18,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:18,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845987704] [2022-11-20 09:29:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:18,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:18,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:18,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:18,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:29:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:19,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:19,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:20,607 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 09:29:20,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:20,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:20,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845987704] [2022-11-20 09:29:20,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845987704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:20,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:20,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:20,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151773171] [2022-11-20 09:29:20,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:20,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:20,611 INFO L87 Difference]: Start difference. First operand 2800 states and 4221 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:21,084 INFO L93 Difference]: Finished difference Result 2802 states and 4222 transitions. [2022-11-20 09:29:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:21,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-20 09:29:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:21,114 INFO L225 Difference]: With dead ends: 2802 [2022-11-20 09:29:21,114 INFO L226 Difference]: Without dead ends: 2799 [2022-11-20 09:29:21,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:21,119 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 4200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:21,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4200 Valid, 4218 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:29:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2022-11-20 09:29:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2022-11-20 09:29:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 1981 states have (on average 1.4169611307420495) internal successors, (2807), 2034 states have internal predecessors, (2807), 708 states have call successors, (708), 110 states have call predecessors, (708), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2022-11-20 09:29:21,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4219 transitions. [2022-11-20 09:29:21,333 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4219 transitions. Word has length 22 [2022-11-20 09:29:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:21,334 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4219 transitions. [2022-11-20 09:29:21,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4219 transitions. [2022-11-20 09:29:21,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 09:29:21,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:21,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:21,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:21,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:21,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:21,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1522194266, now seen corresponding path program 1 times [2022-11-20 09:29:21,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:21,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732439884] [2022-11-20 09:29:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:21,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:21,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:21,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:21,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:29:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:22,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:22,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:23,644 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 09:29:23,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:23,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:23,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732439884] [2022-11-20 09:29:23,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732439884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:23,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:23,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:23,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509922275] [2022-11-20 09:29:23,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:23,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:23,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:23,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:23,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:23,648 INFO L87 Difference]: Start difference. First operand 2799 states and 4219 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:24,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:24,151 INFO L93 Difference]: Finished difference Result 2801 states and 4220 transitions. [2022-11-20 09:29:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:24,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-20 09:29:24,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:24,177 INFO L225 Difference]: With dead ends: 2801 [2022-11-20 09:29:24,177 INFO L226 Difference]: Without dead ends: 2798 [2022-11-20 09:29:24,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:24,186 INFO L413 NwaCegarLoop]: 4216 mSDtfsCounter, 4197 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:24,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4197 Valid, 4216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:29:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-11-20 09:29:24,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2022-11-20 09:29:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 1981 states have (on average 1.4164563351842503) internal successors, (2806), 2033 states have internal predecessors, (2806), 707 states have call successors, (707), 110 states have call predecessors, (707), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2022-11-20 09:29:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4217 transitions. [2022-11-20 09:29:24,461 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4217 transitions. Word has length 23 [2022-11-20 09:29:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:24,461 INFO L495 AbstractCegarLoop]: Abstraction has 2798 states and 4217 transitions. [2022-11-20 09:29:24,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4217 transitions. [2022-11-20 09:29:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 09:29:24,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:24,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:24,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:24,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash 55411199, now seen corresponding path program 1 times [2022-11-20 09:29:24,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:24,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285115062] [2022-11-20 09:29:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:24,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:24,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:24,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:29:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:26,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:26,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:26,800 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 09:29:26,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:26,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:26,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285115062] [2022-11-20 09:29:26,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285115062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:26,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:26,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:26,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696352156] [2022-11-20 09:29:26,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:26,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:26,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:26,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:26,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:26,804 INFO L87 Difference]: Start difference. First operand 2798 states and 4217 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:27,478 INFO L93 Difference]: Finished difference Result 3310 states and 4949 transitions. [2022-11-20 09:29:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:27,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-20 09:29:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:27,514 INFO L225 Difference]: With dead ends: 3310 [2022-11-20 09:29:27,514 INFO L226 Difference]: Without dead ends: 3299 [2022-11-20 09:29:27,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:27,522 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 4101 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 5210 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:27,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 5210 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:29:27,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2022-11-20 09:29:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3299. [2022-11-20 09:29:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2310 states have (on average 1.4086580086580087) internal successors, (3254), 2371 states have internal predecessors, (3254), 841 states have call successors, (841), 148 states have call predecessors, (841), 147 states have return successors, (840), 832 states have call predecessors, (840), 840 states have call successors, (840) [2022-11-20 09:29:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4935 transitions. [2022-11-20 09:29:27,929 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4935 transitions. Word has length 24 [2022-11-20 09:29:27,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:27,930 INFO L495 AbstractCegarLoop]: Abstraction has 3299 states and 4935 transitions. [2022-11-20 09:29:27,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4935 transitions. [2022-11-20 09:29:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 09:29:27,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:27,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:27,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:28,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:28,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:28,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1752809322, now seen corresponding path program 1 times [2022-11-20 09:29:28,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:28,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217639243] [2022-11-20 09:29:28,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:28,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:28,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:28,166 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:28,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:29:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:29,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:29,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:29,660 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 09:29:29,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:29,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:29,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217639243] [2022-11-20 09:29:29,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217639243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:29,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:29,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:29,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000980299] [2022-11-20 09:29:29,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:29,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:29,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:29,664 INFO L87 Difference]: Start difference. First operand 3299 states and 4935 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 09:29:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:35,547 INFO L93 Difference]: Finished difference Result 8128 states and 12103 transitions. [2022-11-20 09:29:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:35,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 66 [2022-11-20 09:29:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:35,582 INFO L225 Difference]: With dead ends: 8128 [2022-11-20 09:29:35,582 INFO L226 Difference]: Without dead ends: 4832 [2022-11-20 09:29:35,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:35,605 INFO L413 NwaCegarLoop]: 5217 mSDtfsCounter, 2232 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 9130 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:35,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 9130 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 09:29:35,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2022-11-20 09:29:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4832. [2022-11-20 09:29:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 3397 states have (on average 1.3979982337356491) internal successors, (4749), 3480 states have internal predecessors, (4749), 1211 states have call successors, (1211), 224 states have call predecessors, (1211), 223 states have return successors, (1210), 1199 states have call predecessors, (1210), 1210 states have call successors, (1210) [2022-11-20 09:29:36,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7170 transitions. [2022-11-20 09:29:36,107 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7170 transitions. Word has length 66 [2022-11-20 09:29:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:36,107 INFO L495 AbstractCegarLoop]: Abstraction has 4832 states and 7170 transitions. [2022-11-20 09:29:36,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 09:29:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7170 transitions. [2022-11-20 09:29:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-20 09:29:36,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:36,122 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:36,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:36,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:36,348 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:36,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1144989951, now seen corresponding path program 1 times [2022-11-20 09:29:36,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:36,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940012110] [2022-11-20 09:29:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:36,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:36,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:36,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:36,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:29:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:37,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:37,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:37,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:37,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:37,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940012110] [2022-11-20 09:29:37,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940012110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:37,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:37,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:37,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605367950] [2022-11-20 09:29:37,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:37,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:37,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:37,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:37,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:37,956 INFO L87 Difference]: Start difference. First operand 4832 states and 7170 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 09:29:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:39,021 INFO L93 Difference]: Finished difference Result 9665 states and 14341 transitions. [2022-11-20 09:29:39,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:29:39,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2022-11-20 09:29:39,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:39,063 INFO L225 Difference]: With dead ends: 9665 [2022-11-20 09:29:39,063 INFO L226 Difference]: Without dead ends: 4832 [2022-11-20 09:29:39,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:39,090 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 1 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12601 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:39,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12601 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:29:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2022-11-20 09:29:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4832. [2022-11-20 09:29:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 3397 states have (on average 1.3974094789520164) internal successors, (4747), 3480 states have internal predecessors, (4747), 1211 states have call successors, (1211), 224 states have call predecessors, (1211), 223 states have return successors, (1210), 1199 states have call predecessors, (1210), 1210 states have call successors, (1210) [2022-11-20 09:29:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7168 transitions. [2022-11-20 09:29:39,545 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7168 transitions. Word has length 80 [2022-11-20 09:29:39,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:39,546 INFO L495 AbstractCegarLoop]: Abstraction has 4832 states and 7168 transitions. [2022-11-20 09:29:39,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 09:29:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7168 transitions. [2022-11-20 09:29:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 09:29:39,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:39,564 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:39,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:39,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:39,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:39,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1696703040, now seen corresponding path program 1 times [2022-11-20 09:29:39,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:39,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338496754] [2022-11-20 09:29:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:39,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:39,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:39,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:39,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:29:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:42,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 2611 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 09:29:42,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:44,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:44,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:44,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338496754] [2022-11-20 09:29:44,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338496754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:44,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:44,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 09:29:44,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448612098] [2022-11-20 09:29:44,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:44,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 09:29:44,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:44,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 09:29:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:44,325 INFO L87 Difference]: Start difference. First operand 4832 states and 7168 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:29:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:51,530 INFO L93 Difference]: Finished difference Result 12315 states and 18617 transitions. [2022-11-20 09:29:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:29:51,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 97 [2022-11-20 09:29:51,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:51,615 INFO L225 Difference]: With dead ends: 12315 [2022-11-20 09:29:51,615 INFO L226 Difference]: Without dead ends: 7486 [2022-11-20 09:29:51,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:29:51,750 INFO L413 NwaCegarLoop]: 5156 mSDtfsCounter, 5019 mSDsluCounter, 40858 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5247 SdHoareTripleChecker+Valid, 46014 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:51,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5247 Valid, 46014 Invalid, 1084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [919 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 09:29:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7486 states. [2022-11-20 09:29:52,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7486 to 4848. [2022-11-20 09:29:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4848 states, 3409 states have (on average 1.3960105602816075) internal successors, (4759), 3492 states have internal predecessors, (4759), 1213 states have call successors, (1213), 224 states have call predecessors, (1213), 225 states have return successors, (1228), 1203 states have call predecessors, (1228), 1212 states have call successors, (1228) [2022-11-20 09:29:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4848 states to 4848 states and 7200 transitions. [2022-11-20 09:29:52,396 INFO L78 Accepts]: Start accepts. Automaton has 4848 states and 7200 transitions. Word has length 97 [2022-11-20 09:29:52,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:52,397 INFO L495 AbstractCegarLoop]: Abstraction has 4848 states and 7200 transitions. [2022-11-20 09:29:52,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:29:52,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4848 states and 7200 transitions. [2022-11-20 09:29:52,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 09:29:52,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:52,413 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:52,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:52,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:52,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:52,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:52,628 INFO L85 PathProgramCache]: Analyzing trace with hash 521346011, now seen corresponding path program 1 times [2022-11-20 09:29:52,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:52,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573372289] [2022-11-20 09:29:52,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:52,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:52,632 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:52,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:29:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:55,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2614 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 09:29:55,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:56,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:56,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:56,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573372289] [2022-11-20 09:29:56,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573372289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:56,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:56,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 09:29:56,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561829322] [2022-11-20 09:29:56,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:56,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:29:56,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:56,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:29:56,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:29:56,935 INFO L87 Difference]: Start difference. First operand 4848 states and 7200 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:30:03,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:37,263 INFO L93 Difference]: Finished difference Result 17126 states and 25780 transitions. [2022-11-20 09:30:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 09:30:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 100 [2022-11-20 09:30:37,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:37,318 INFO L225 Difference]: With dead ends: 17126 [2022-11-20 09:30:37,319 INFO L226 Difference]: Without dead ends: 12281 [2022-11-20 09:30:37,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:30:37,343 INFO L413 NwaCegarLoop]: 5353 mSDtfsCounter, 9734 mSDsluCounter, 32568 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 1202 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9742 SdHoareTripleChecker+Valid, 37921 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1202 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:37,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9742 Valid, 37921 Invalid, 3082 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1202 Valid, 1879 Invalid, 1 Unknown, 0 Unchecked, 36.1s Time] [2022-11-20 09:30:37,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12281 states. [2022-11-20 09:30:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12281 to 9656. [2022-11-20 09:30:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9656 states, 6786 states have (on average 1.3964043619216033) internal successors, (9476), 6954 states have internal predecessors, (9476), 2421 states have call successors, (2421), 445 states have call predecessors, (2421), 448 states have return successors, (2452), 2398 states have call predecessors, (2452), 2420 states have call successors, (2452) [2022-11-20 09:30:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9656 states to 9656 states and 14349 transitions. [2022-11-20 09:30:38,838 INFO L78 Accepts]: Start accepts. Automaton has 9656 states and 14349 transitions. Word has length 100 [2022-11-20 09:30:38,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:38,838 INFO L495 AbstractCegarLoop]: Abstraction has 9656 states and 14349 transitions. [2022-11-20 09:30:38,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:30:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 9656 states and 14349 transitions. [2022-11-20 09:30:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-20 09:30:38,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:38,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:38,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:39,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:39,091 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash 225045604, now seen corresponding path program 1 times [2022-11-20 09:30:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:39,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864748534] [2022-11-20 09:30:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:39,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:39,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:39,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:39,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 09:30:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:41,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:41,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:42,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:42,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:42,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864748534] [2022-11-20 09:30:42,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864748534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:42,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:42,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:42,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179121429] [2022-11-20 09:30:42,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:42,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:42,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:42,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:42,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:42,079 INFO L87 Difference]: Start difference. First operand 9656 states and 14349 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:30:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:48,863 INFO L93 Difference]: Finished difference Result 24989 states and 37196 transitions. [2022-11-20 09:30:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 101 [2022-11-20 09:30:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:48,958 INFO L225 Difference]: With dead ends: 24989 [2022-11-20 09:30:48,958 INFO L226 Difference]: Without dead ends: 15336 [2022-11-20 09:30:49,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:49,007 INFO L413 NwaCegarLoop]: 6385 mSDtfsCounter, 3537 mSDsluCounter, 3879 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3537 SdHoareTripleChecker+Valid, 10264 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:49,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3537 Valid, 10264 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-20 09:30:49,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15336 states. [2022-11-20 09:30:50,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15336 to 15333. [2022-11-20 09:30:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 10806 states have (on average 1.3887655006477884) internal successors, (15007), 11085 states have internal predecessors, (15007), 3801 states have call successors, (3801), 720 states have call predecessors, (3801), 725 states have return successors, (3848), 3762 states have call predecessors, (3848), 3800 states have call successors, (3848) [2022-11-20 09:30:51,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 22656 transitions. [2022-11-20 09:30:51,088 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 22656 transitions. Word has length 101 [2022-11-20 09:30:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:51,089 INFO L495 AbstractCegarLoop]: Abstraction has 15333 states and 22656 transitions. [2022-11-20 09:30:51,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:30:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 22656 transitions. [2022-11-20 09:30:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 09:30:51,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:51,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:51,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:51,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:51,335 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1520454019, now seen corresponding path program 1 times [2022-11-20 09:30:51,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:51,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582663483] [2022-11-20 09:30:51,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:51,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:51,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:51,340 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:51,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 09:30:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:54,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:54,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:30:55,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:55,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:55,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582663483] [2022-11-20 09:30:55,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582663483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:55,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:55,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:30:55,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183289742] [2022-11-20 09:30:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:55,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:55,888 INFO L87 Difference]: Start difference. First operand 15333 states and 22656 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:30:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:58,319 INFO L93 Difference]: Finished difference Result 30519 states and 45707 transitions. [2022-11-20 09:30:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:58,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2022-11-20 09:30:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:58,401 INFO L225 Difference]: With dead ends: 30519 [2022-11-20 09:30:58,402 INFO L226 Difference]: Without dead ends: 15189 [2022-11-20 09:30:58,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:58,469 INFO L413 NwaCegarLoop]: 4044 mSDtfsCounter, 4049 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:58,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 4044 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:30:58,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15189 states. [2022-11-20 09:31:00,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15189 to 15189. [2022-11-20 09:31:00,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15189 states, 10680 states have (on average 1.3603932584269662) internal successors, (14529), 10953 states have internal predecessors, (14529), 3789 states have call successors, (3789), 714 states have call predecessors, (3789), 719 states have return successors, (3836), 3750 states have call predecessors, (3836), 3788 states have call successors, (3836) [2022-11-20 09:31:00,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15189 states to 15189 states and 22154 transitions. [2022-11-20 09:31:00,200 INFO L78 Accepts]: Start accepts. Automaton has 15189 states and 22154 transitions. Word has length 100 [2022-11-20 09:31:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:00,201 INFO L495 AbstractCegarLoop]: Abstraction has 15189 states and 22154 transitions. [2022-11-20 09:31:00,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:31:00,201 INFO L276 IsEmpty]: Start isEmpty. Operand 15189 states and 22154 transitions. [2022-11-20 09:31:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 09:31:00,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:00,344 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:00,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:00,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:00,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:00,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1096807297, now seen corresponding path program 1 times [2022-11-20 09:31:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:00,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178685354] [2022-11-20 09:31:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:00,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:00,551 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:00,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 09:31:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:03,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:03,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:31:03,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:03,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:03,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178685354] [2022-11-20 09:31:03,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178685354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:03,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:03,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211021653] [2022-11-20 09:31:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:03,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:03,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:03,540 INFO L87 Difference]: Start difference. First operand 15189 states and 22154 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:31:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:05,365 INFO L93 Difference]: Finished difference Result 30407 states and 44417 transitions. [2022-11-20 09:31:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:05,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2022-11-20 09:31:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:05,577 INFO L225 Difference]: With dead ends: 30407 [2022-11-20 09:31:05,577 INFO L226 Difference]: Without dead ends: 15221 [2022-11-20 09:31:05,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:05,625 INFO L413 NwaCegarLoop]: 4104 mSDtfsCounter, 2 mSDsluCounter, 12291 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16395 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:05,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16395 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:31:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15221 states. [2022-11-20 09:31:07,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15221 to 15205. [2022-11-20 09:31:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15205 states, 10692 states have (on average 1.3599887766554433) internal successors, (14541), 10965 states have internal predecessors, (14541), 3789 states have call successors, (3789), 714 states have call predecessors, (3789), 723 states have return successors, (3898), 3754 states have call predecessors, (3898), 3788 states have call successors, (3898) [2022-11-20 09:31:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15205 states to 15205 states and 22228 transitions. [2022-11-20 09:31:07,282 INFO L78 Accepts]: Start accepts. Automaton has 15205 states and 22228 transitions. Word has length 100 [2022-11-20 09:31:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:07,282 INFO L495 AbstractCegarLoop]: Abstraction has 15205 states and 22228 transitions. [2022-11-20 09:31:07,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:31:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 15205 states and 22228 transitions. [2022-11-20 09:31:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 09:31:07,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:07,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:07,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:07,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:07,515 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:07,516 INFO L85 PathProgramCache]: Analyzing trace with hash 535996702, now seen corresponding path program 1 times [2022-11-20 09:31:07,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:07,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863153951] [2022-11-20 09:31:07,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:07,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:07,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:07,518 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:07,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 09:31:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:10,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:10,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:12,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:31:12,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:12,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:12,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863153951] [2022-11-20 09:31:12,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863153951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:12,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:12,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:12,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176129096] [2022-11-20 09:31:12,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:12,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:12,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:12,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:12,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:12,374 INFO L87 Difference]: Start difference. First operand 15205 states and 22228 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:31:17,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:17,592 INFO L93 Difference]: Finished difference Result 30407 states and 44463 transitions. [2022-11-20 09:31:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:17,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 100 [2022-11-20 09:31:17,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:17,665 INFO L225 Difference]: With dead ends: 30407 [2022-11-20 09:31:17,665 INFO L226 Difference]: Without dead ends: 15205 [2022-11-20 09:31:17,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:17,717 INFO L413 NwaCegarLoop]: 3984 mSDtfsCounter, 4706 mSDsluCounter, 7221 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 11205 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:17,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 11205 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 09:31:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15205 states. [2022-11-20 09:31:19,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15205 to 15205. [2022-11-20 09:31:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15205 states, 10692 states have (on average 1.3596146651702208) internal successors, (14537), 10965 states have internal predecessors, (14537), 3789 states have call successors, (3789), 714 states have call predecessors, (3789), 723 states have return successors, (3898), 3754 states have call predecessors, (3898), 3788 states have call successors, (3898) [2022-11-20 09:31:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15205 states to 15205 states and 22224 transitions. [2022-11-20 09:31:19,522 INFO L78 Accepts]: Start accepts. Automaton has 15205 states and 22224 transitions. Word has length 100 [2022-11-20 09:31:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:19,523 INFO L495 AbstractCegarLoop]: Abstraction has 15205 states and 22224 transitions. [2022-11-20 09:31:19,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:31:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 15205 states and 22224 transitions. [2022-11-20 09:31:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-20 09:31:19,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:19,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:19,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:19,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:19,759 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash 414910221, now seen corresponding path program 1 times [2022-11-20 09:31:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:19,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474068932] [2022-11-20 09:31:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:19,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:19,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:19,764 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:19,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 09:31:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:31:22,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:31:25,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:25,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:25,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474068932] [2022-11-20 09:31:25,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474068932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:25,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:25,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:31:25,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259775609] [2022-11-20 09:31:25,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:25,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:31:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:25,092 INFO L87 Difference]: Start difference. First operand 15205 states and 22224 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:31:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:27,445 INFO L93 Difference]: Finished difference Result 27831 states and 40473 transitions. [2022-11-20 09:31:27,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:27,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 101 [2022-11-20 09:31:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:27,506 INFO L225 Difference]: With dead ends: 27831 [2022-11-20 09:31:27,507 INFO L226 Difference]: Without dead ends: 12629 [2022-11-20 09:31:27,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:31:27,548 INFO L413 NwaCegarLoop]: 3521 mSDtfsCounter, 3522 mSDsluCounter, 10535 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 14056 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:27,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 14056 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 09:31:27,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12629 states. [2022-11-20 09:31:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12629 to 12629. [2022-11-20 09:31:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12629 states, 8930 states have (on average 1.346360582306831) internal successors, (12023), 9135 states have internal predecessors, (12023), 3033 states have call successors, (3033), 656 states have call predecessors, (3033), 665 states have return successors, (3142), 3018 states have call predecessors, (3142), 3032 states have call successors, (3142) [2022-11-20 09:31:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12629 states to 12629 states and 18198 transitions. [2022-11-20 09:31:29,383 INFO L78 Accepts]: Start accepts. Automaton has 12629 states and 18198 transitions. Word has length 101 [2022-11-20 09:31:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:29,384 INFO L495 AbstractCegarLoop]: Abstraction has 12629 states and 18198 transitions. [2022-11-20 09:31:29,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 09:31:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 12629 states and 18198 transitions. [2022-11-20 09:31:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 09:31:29,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:29,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:29,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:29,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:29,611 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1551842954, now seen corresponding path program 1 times [2022-11-20 09:31:29,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:29,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461871806] [2022-11-20 09:31:29,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:29,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:29,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:29,617 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:29,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 09:31:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:32,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:32,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:31:32,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:32,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461871806] [2022-11-20 09:31:32,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461871806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:32,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:32,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:32,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531788214] [2022-11-20 09:31:32,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:32,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:32,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:32,784 INFO L87 Difference]: Start difference. First operand 12629 states and 18198 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:31:34,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:34,521 INFO L93 Difference]: Finished difference Result 25279 states and 36439 transitions. [2022-11-20 09:31:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-20 09:31:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:34,591 INFO L225 Difference]: With dead ends: 25279 [2022-11-20 09:31:34,591 INFO L226 Difference]: Without dead ends: 12653 [2022-11-20 09:31:34,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:34,629 INFO L413 NwaCegarLoop]: 3539 mSDtfsCounter, 2 mSDsluCounter, 10596 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14135 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:34,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14135 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:31:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12653 states. [2022-11-20 09:31:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12653 to 12637. [2022-11-20 09:31:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12637 states, 8938 states have (on average 1.346050570597449) internal successors, (12031), 9139 states have internal predecessors, (12031), 3033 states have call successors, (3033), 656 states have call predecessors, (3033), 665 states have return successors, (3142), 3022 states have call predecessors, (3142), 3032 states have call successors, (3142) [2022-11-20 09:31:36,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12637 states to 12637 states and 18206 transitions. [2022-11-20 09:31:36,067 INFO L78 Accepts]: Start accepts. Automaton has 12637 states and 18206 transitions. Word has length 111 [2022-11-20 09:31:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:36,067 INFO L495 AbstractCegarLoop]: Abstraction has 12637 states and 18206 transitions. [2022-11-20 09:31:36,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:31:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12637 states and 18206 transitions. [2022-11-20 09:31:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 09:31:36,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:36,083 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:36,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:36,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:36,303 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:31:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:36,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1113833451, now seen corresponding path program 1 times [2022-11-20 09:31:36,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:36,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889591126] [2022-11-20 09:31:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:36,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:36,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:36,306 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:36,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 09:31:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:39,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 09:31:39,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:42,416 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_hangup_~tty#1.base_BEFORE_CALL_2| (_ BitVec 64)) (|v_hangup_~tty#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (_ bv0 64) (let ((.cse0 (bvadd |v_hangup_~tty#1.offset_BEFORE_CALL_2| (_ bv1215 64)))) (bvadd (select (select |c_#memory_$Pointer$.offset| |v_hangup_~tty#1.base_BEFORE_CALL_2|) .cse0) (select (select |c_#memory_$Pointer$.base| |v_hangup_~tty#1.base_BEFORE_CALL_2|) .cse0)))))) is different from true [2022-11-20 09:31:44,945 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_hangup_~tty#1.base_BEFORE_CALL_3| (_ BitVec 64)) (|v_hangup_~tty#1.offset_BEFORE_CALL_3| (_ BitVec 64))) (not (= (_ bv0 64) (let ((.cse0 (bvadd |v_hangup_~tty#1.offset_BEFORE_CALL_3| (_ bv1215 64)))) (bvadd (select (select |c_#memory_$Pointer$.base| |v_hangup_~tty#1.base_BEFORE_CALL_3|) .cse0) (select (select |c_#memory_$Pointer$.offset| |v_hangup_~tty#1.base_BEFORE_CALL_3|) .cse0)))))) is different from true [2022-11-20 09:31:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:31:48,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 09:31:57,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:57,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889591126] [2022-11-20 09:31:57,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889591126] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:57,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:31:57,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 19 [2022-11-20 09:31:57,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385859574] [2022-11-20 09:31:57,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:57,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 09:31:57,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:57,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 09:31:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=225, Unknown=2, NotChecked=62, Total=342 [2022-11-20 09:31:57,317 INFO L87 Difference]: Start difference. First operand 12637 states and 18206 transitions. Second operand has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (23), 6 states have call predecessors, (23), 9 states have return successors, (20), 5 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-20 09:32:06,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:49,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:52,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:54,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:56,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:01,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:03,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:05,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:16,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:19,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:21,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:22,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:32,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:34,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:36,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:39,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:41,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:43,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:45,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:47,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:49,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:07,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:09,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:10,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:12,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:13,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:15,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:17,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:19,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:20,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:22,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:23,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:25,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:26,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:27,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:29,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:30,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:32,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:27,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:50,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:52,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:54,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:05,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:07,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:09,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:18,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:20,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:28,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:30,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:32,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:34,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:36,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:38,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:40,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:42,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:44,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:46,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:48,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:50,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:52,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:54,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:56,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:06,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:10,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:12,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:14,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:25,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:27,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:35,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:43,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:45,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:47,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:55,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:57,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:59,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:01,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:03,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:04,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:06,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:08,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:10,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:16,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:18,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:20,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:22,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:38,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:40,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:42,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:38:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:46,268 INFO L93 Difference]: Finished difference Result 26603 states and 38569 transitions. [2022-11-20 09:38:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 09:38:46,281 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (23), 6 states have call predecessors, (23), 9 states have return successors, (20), 5 states have call predecessors, (20), 7 states have call successors, (20) Word has length 111 [2022-11-20 09:38:46,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:46,369 INFO L225 Difference]: With dead ends: 26603 [2022-11-20 09:38:46,370 INFO L226 Difference]: Without dead ends: 13937 [2022-11-20 09:38:46,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 201 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=106, Invalid=449, Unknown=5, NotChecked=90, Total=650 [2022-11-20 09:38:46,417 INFO L413 NwaCegarLoop]: 3087 mSDtfsCounter, 1550 mSDsluCounter, 27707 mSDsCounter, 0 mSdLazyCounter, 9095 mSolverCounterSat, 1413 mSolverCounterUnsat, 57 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 388.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 30794 SdHoareTripleChecker+Invalid, 19677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1413 IncrementalHoareTripleChecker+Valid, 9095 IncrementalHoareTripleChecker+Invalid, 57 IncrementalHoareTripleChecker+Unknown, 9112 IncrementalHoareTripleChecker+Unchecked, 402.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:38:46,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 30794 Invalid, 19677 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1413 Valid, 9095 Invalid, 57 Unknown, 9112 Unchecked, 402.1s Time] [2022-11-20 09:38:46,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13937 states. [2022-11-20 09:38:48,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13937 to 12681. [2022-11-20 09:38:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12681 states, 8964 states have (on average 1.3450468540829987) internal successors, (12057), 9169 states have internal predecessors, (12057), 3043 states have call successors, (3043), 660 states have call predecessors, (3043), 673 states have return successors, (3158), 3034 states have call predecessors, (3158), 3042 states have call successors, (3158) [2022-11-20 09:38:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12681 states to 12681 states and 18258 transitions. [2022-11-20 09:38:48,100 INFO L78 Accepts]: Start accepts. Automaton has 12681 states and 18258 transitions. Word has length 111 [2022-11-20 09:38:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:48,101 INFO L495 AbstractCegarLoop]: Abstraction has 12681 states and 18258 transitions. [2022-11-20 09:38:48,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (23), 6 states have call predecessors, (23), 9 states have return successors, (20), 5 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-20 09:38:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 12681 states and 18258 transitions. [2022-11-20 09:38:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 09:38:48,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:48,119 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:38:48,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:38:48,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:38:48,343 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:38:48,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:48,344 INFO L85 PathProgramCache]: Analyzing trace with hash 997456918, now seen corresponding path program 1 times [2022-11-20 09:38:48,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:38:48,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352140681] [2022-11-20 09:38:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:48,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:38:48,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:38:48,347 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:38:48,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 09:38:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:51,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:38:51,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:38:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:38:52,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:38:52,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:38:52,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352140681] [2022-11-20 09:38:52,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352140681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:38:52,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:38:52,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:38:52,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390940791] [2022-11-20 09:38:52,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:38:52,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:38:52,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:38:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:38:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:38:52,088 INFO L87 Difference]: Start difference. First operand 12681 states and 18258 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:38:54,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:38:54,048 INFO L93 Difference]: Finished difference Result 25379 states and 36569 transitions. [2022-11-20 09:38:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:38:54,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-20 09:38:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:38:54,106 INFO L225 Difference]: With dead ends: 25379 [2022-11-20 09:38:54,106 INFO L226 Difference]: Without dead ends: 12701 [2022-11-20 09:38:54,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:38:54,138 INFO L413 NwaCegarLoop]: 3566 mSDtfsCounter, 4 mSDsluCounter, 10663 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14229 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:38:54,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14229 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:38:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12701 states. [2022-11-20 09:38:55,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12701 to 12689. [2022-11-20 09:38:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12689 states, 8972 states have (on average 1.344293357111012) internal successors, (12061), 9169 states have internal predecessors, (12061), 3043 states have call successors, (3043), 660 states have call predecessors, (3043), 673 states have return successors, (3158), 3038 states have call predecessors, (3158), 3042 states have call successors, (3158) [2022-11-20 09:38:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12689 states to 12689 states and 18262 transitions. [2022-11-20 09:38:55,713 INFO L78 Accepts]: Start accepts. Automaton has 12689 states and 18262 transitions. Word has length 111 [2022-11-20 09:38:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:38:55,714 INFO L495 AbstractCegarLoop]: Abstraction has 12689 states and 18262 transitions. [2022-11-20 09:38:55,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:38:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12689 states and 18262 transitions. [2022-11-20 09:38:55,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 09:38:55,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:38:55,743 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:38:55,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 09:38:55,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:38:55,967 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:38:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:38:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash -190128657, now seen corresponding path program 1 times [2022-11-20 09:38:55,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:38:55,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559778829] [2022-11-20 09:38:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:38:55,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:38:55,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:38:55,971 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:38:55,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 09:38:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:59,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 2818 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:38:59,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:39:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 09:39:02,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:39:02,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:39:02,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559778829] [2022-11-20 09:39:02,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559778829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:39:02,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:39:02,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:39:02,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387065986] [2022-11-20 09:39:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:39:02,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:39:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:39:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:39:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:39:02,119 INFO L87 Difference]: Start difference. First operand 12689 states and 18262 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 09:39:03,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:39:03,626 INFO L93 Difference]: Finished difference Result 12689 states and 18262 transitions. [2022-11-20 09:39:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:39:03,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2022-11-20 09:39:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:39:03,629 INFO L225 Difference]: With dead ends: 12689 [2022-11-20 09:39:03,629 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 09:39:03,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:39:03,652 INFO L413 NwaCegarLoop]: 3766 mSDtfsCounter, 264 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 7259 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:39:03,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 7259 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:39:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 09:39:03,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 09:39:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 09:39:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 09:39:03,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2022-11-20 09:39:03,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:39:03,656 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:39:03,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 09:39:03,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:39:03,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 09:39:03,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 09:39:03,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 09:39:03,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b6c65c7-0265-497a-a58c-a048e279f462/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:39:03,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 09:39:37,867 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 94 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter)