./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.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_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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_12d47331-7b98-401f-b983-65637a5da96b/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 3f5bdb6b0aa6babe38c3d2b7c8b86a9d169e61742b5c110bfab8a392415efc49 --- 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 10:47:55,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:47:55,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:47:55,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:47:55,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:47:55,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:47:55,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:47:55,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:47:55,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:47:55,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:47:55,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:47:55,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:47:55,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:47:55,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:47:55,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:47:55,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:47:55,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:47:55,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:47:55,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:47:55,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:47:55,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:47:55,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:47:55,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:47:55,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:47:55,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:47:55,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:47:55,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:47:55,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:47:55,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:47:55,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:47:55,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:47:55,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:47:55,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:47:55,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:47:55,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:47:55,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:47:55,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:47:55,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:47:55,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:47:55,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:47:55,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:47:55,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:47:55,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:47:55,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:47:55,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:47:55,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:47:55,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:47:55,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:47:55,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:47:55,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:47:55,633 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:47:55,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:47:55,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:47:55,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:47:55,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:47:55,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:47:55,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:47:55,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:47:55,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:47:55,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:47:55,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:47:55,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:47:55,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:47:55,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:47:55,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:47:55,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:47:55,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:47:55,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:47:55,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:47:55,638 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:47:55,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:47:55,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:47:55,639 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_12d47331-7b98-401f-b983-65637a5da96b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f5bdb6b0aa6babe38c3d2b7c8b86a9d169e61742b5c110bfab8a392415efc49 [2022-11-20 10:47:55,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:47:56,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:47:56,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:47:56,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:47:56,043 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:47:56,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 10:47:59,206 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:47:59,932 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:47:59,933 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 10:47:59,992 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data/de0a13152/7a48d9d1b93e408fb1abf584ae0b59e2/FLAGcce36eb73 [2022-11-20 10:48:00,011 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data/de0a13152/7a48d9d1b93e408fb1abf584ae0b59e2 [2022-11-20 10:48:00,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:48:00,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:48:00,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:48:00,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:48:00,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:48:00,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:48:00" (1/1) ... [2022-11-20 10:48:00,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a07225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:00, skipping insertion in model container [2022-11-20 10:48:00,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:48:00" (1/1) ... [2022-11-20 10:48:00,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:48:00,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:48:00,921 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 10:48:00,930 INFO L158 Benchmark]: Toolchain (without parser) took 913.49ms. Allocated memory is still 161.5MB. Free memory was 114.9MB in the beginning and 90.3MB in the end (delta: 24.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2022-11-20 10:48:00,931 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:48:00,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 909.27ms. Allocated memory is still 161.5MB. Free memory was 114.9MB in the beginning and 90.3MB in the end (delta: 24.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2022-11-20 10:48:00,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 909.27ms. Allocated memory is still 161.5MB. Free memory was 114.9MB in the beginning and 90.3MB in the end (delta: 24.6MB). Peak memory consumption was 50.5MB. 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_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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_12d47331-7b98-401f-b983-65637a5da96b/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 3f5bdb6b0aa6babe38c3d2b7c8b86a9d169e61742b5c110bfab8a392415efc49 --- 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 10:48:03,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:48:03,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:48:03,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:48:03,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:48:03,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:48:03,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:48:03,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:48:03,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:48:03,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:48:03,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:48:03,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:48:03,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:48:03,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:48:03,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:48:03,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:48:03,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:48:03,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:48:03,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:48:03,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:48:03,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:48:03,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:48:03,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:48:03,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:48:03,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:48:03,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:48:03,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:48:03,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:48:03,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:48:03,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:48:03,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:48:03,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:48:03,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:48:03,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:48:03,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:48:03,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:48:03,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:48:03,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:48:03,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:48:03,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:48:03,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:48:03,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:48:03,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:48:03,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:48:03,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:48:03,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:48:03,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:48:03,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:48:03,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:48:03,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:48:03,336 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:48:03,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:48:03,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:48:03,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:48:03,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:48:03,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:48:03,339 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:48:03,339 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:48:03,339 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:48:03,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:48:03,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:48:03,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:48:03,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:48:03,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:48:03,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:48:03,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:48:03,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:48:03,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:48:03,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:48:03,341 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:48:03,342 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:48:03,342 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:48:03,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:48:03,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:48:03,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:48:03,343 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_12d47331-7b98-401f-b983-65637a5da96b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f5bdb6b0aa6babe38c3d2b7c8b86a9d169e61742b5c110bfab8a392415efc49 [2022-11-20 10:48:03,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:48:03,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:48:03,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:48:03,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:48:03,789 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:48:03,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 10:48:06,892 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:48:07,681 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:48:07,682 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 10:48:07,738 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data/8de58bce3/2976fa94610148ed88d1261375e2c423/FLAGbfd33c66f [2022-11-20 10:48:07,756 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/data/8de58bce3/2976fa94610148ed88d1261375e2c423 [2022-11-20 10:48:07,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:48:07,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:48:07,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:48:07,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:48:07,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:48:07,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:48:07" (1/1) ... [2022-11-20 10:48:07,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f63ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:07, skipping insertion in model container [2022-11-20 10:48:07,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:48:07" (1/1) ... [2022-11-20 10:48:07,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:48:07,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:48:11,167 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_12d47331-7b98-401f-b983-65637a5da96b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i[448621,448634] [2022-11-20 10:48:11,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:48:11,286 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:48:11,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:48:11,876 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_12d47331-7b98-401f-b983-65637a5da96b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i[448621,448634] [2022-11-20 10:48:11,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:48:11,912 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:48:12,572 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_12d47331-7b98-401f-b983-65637a5da96b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i[448621,448634] [2022-11-20 10:48:12,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:48:12,875 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:48:12,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12 WrapperNode [2022-11-20 10:48:12,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:48:12,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:48:12,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:48:12,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:48:12,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,282 INFO L138 Inliner]: procedures = 336, calls = 4597, calls flagged for inlining = 123, calls inlined = 121, statements flattened = 8315 [2022-11-20 10:48:13,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:48:13,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:48:13,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:48:13,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:48:13,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:48:13,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:48:13,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:48:13,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:48:13,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (1/1) ... [2022-11-20 10:48:13,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:48:13,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:48:13,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:48:13,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:48:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 10:48:13,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 10:48:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-20 10:48:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-20 10:48:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-20 10:48:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-20 10:48:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:48:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-20 10:48:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-20 10:48:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:48:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:48:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:48:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:48:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:48:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-20 10:48:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-20 10:48:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:48:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:48:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 10:48:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 10:48:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:48:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:48:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_power_mgmt [2022-11-20 10:48:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_power_mgmt [2022-11-20 10:48:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_get_station [2022-11-20 10:48:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_get_station [2022-11-20 10:48:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-20 10:48:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-20 10:48:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure eth_zero_addr [2022-11-20 10:48:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_zero_addr [2022-11-20 10:48:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-20 10:48:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-20 10:48:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 10:48:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 10:48:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-20 10:48:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-20 10:48:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-20 10:48:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-20 10:48:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-20 10:48:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-20 10:48:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:48:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:48:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_leave_ibss [2022-11-20 10:48:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_leave_ibss [2022-11-20 10:48:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 10:48:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 10:48:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-20 10:48:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-20 10:48:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-20 10:48:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-20 10:48:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_worker [2022-11-20 10:48:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_worker [2022-11-20 10:48:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-20 10:48:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-20 10:48:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_change_virtual_intf [2022-11-20 10:48:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_change_virtual_intf [2022-11-20 10:48:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_tx_power [2022-11-20 10:48:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_tx_power [2022-11-20 10:48:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-20 10:48:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-20 10:48:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_default_key [2022-11-20 10:48:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_default_key [2022-11-20 10:48:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_del_pmksa [2022-11-20 10:48:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_del_pmksa [2022-11-20 10:48:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-20 10:48:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-20 10:48:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:48:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:48:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:48:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:48:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 10:48:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 10:48:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-20 10:48:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-20 10:48:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_get_tx_power [2022-11-20 10:48:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_get_tx_power [2022-11-20 10:48:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-20 10:48:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-20 10:48:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-20 10:48:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-20 10:48:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:48:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:48:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_del_key [2022-11-20 10:48:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_del_key [2022-11-20 10:48:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-20 10:48:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-20 10:48:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:48:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:48:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure eth_broadcast_addr [2022-11-20 10:48:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_broadcast_addr [2022-11-20 10:48:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-20 10:48:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-20 10:48:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 10:48:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 10:48:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_get_scan_results [2022-11-20 10:48:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_get_scan_results [2022-11-20 10:48:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:48:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:48:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:48:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_cqm_rssi_config [2022-11-20 10:48:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_cqm_rssi_config [2022-11-20 10:48:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-20 10:48:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-20 10:48:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_join_ibss [2022-11-20 10:48:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_join_ibss [2022-11-20 10:48:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-20 10:48:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-20 10:48:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-20 10:48:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-20 10:48:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-20 10:48:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-20 10:48:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-20 10:48:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-20 10:48:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:48:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-20 10:48:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-20 10:48:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_flush_pmksa [2022-11-20 10:48:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_flush_pmksa [2022-11-20 10:48:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-20 10:48:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-20 10:48:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:48:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:48:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-11-20 10:48:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-11-20 10:48:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:48:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:48:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-20 10:48:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-20 10:48:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-20 10:48:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-20 10:48:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:48:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:48:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:48:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 10:48:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 10:48:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:48:13,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:48:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:48:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-20 10:48:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-20 10:48:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-20 10:48:13,876 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-20 10:48:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-20 10:48:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-20 10:48:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:48:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:48:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:48:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:48:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-20 10:48:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-20 10:48:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 10:48:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 10:48:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-20 10:48:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-20 10:48:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 10:48:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 10:48:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:48:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:48:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-20 10:48:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-20 10:48:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-20 10:48:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-20 10:48:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 10:48:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 10:48:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:48:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:48:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-20 10:48:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-20 10:48:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-20 10:48:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-20 10:48:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:48:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:48:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-20 10:48:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-20 10:48:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 10:48:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 10:48:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-20 10:48:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-20 10:48:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_pmksa [2022-11-20 10:48:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_pmksa [2022-11-20 10:48:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-20 10:48:13,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-20 10:48:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-20 10:48:13,884 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-20 10:48:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-20 10:48:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-20 10:48:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_current_channel [2022-11-20 10:48:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current_channel [2022-11-20 10:48:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-20 10:48:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-20 10:48:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-20 10:48:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-20 10:48:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-20 10:48:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-20 10:48:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:48:13,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:48:13,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:48:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:48:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-20 10:48:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-20 10:48:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:48:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:48:13,888 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-20 10:48:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-20 10:48:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-20 10:48:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-20 10:48:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-20 10:48:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-20 10:48:13,889 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-20 10:48:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-20 10:48:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-20 10:48:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-20 10:48:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:48:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:48:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:48:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:48:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:48:13,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:48:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:48:13,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:48:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-20 10:48:13,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-20 10:48:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-20 10:48:13,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-20 10:48:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:48:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-20 10:48:13,892 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-20 10:48:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-20 10:48:13,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-20 10:48:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-20 10:48:13,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-20 10:48:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:48:13,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:48:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:48:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-20 10:48:13,893 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-20 10:48:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-20 10:48:13,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-20 10:48:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-20 10:48:13,898 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-20 10:48:13,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:48:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:48:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:48:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-20 10:48:13,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-20 10:48:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-20 10:48:13,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-20 10:48:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:48:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-20 10:48:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-20 10:48:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_device_poller [2022-11-20 10:48:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_device_poller [2022-11-20 10:48:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-20 10:48:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-20 10:48:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_add_key [2022-11-20 10:48:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_add_key [2022-11-20 10:48:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 10:48:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 10:48:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-20 10:48:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-20 10:48:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-11-20 10:48:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-11-20 10:48:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 10:48:13,903 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 10:48:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:48:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:48:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-20 10:48:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-20 10:48:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-20 10:48:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-20 10:48:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-20 10:48:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-20 10:48:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-20 10:48:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-20 10:48:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-20 10:48:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-20 10:48:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-20 10:48:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-20 10:48:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-20 10:48:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-20 10:48:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:48:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:48:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_scan [2022-11-20 10:48:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_scan [2022-11-20 10:48:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:48:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-20 10:48:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-20 10:48:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-20 10:48:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-20 10:48:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 10:48:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 10:48:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:48:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:48:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_dump_station [2022-11-20 10:48:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_dump_station [2022-11-20 10:48:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 10:48:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 10:48:15,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:48:15,146 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:48:20,395 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:50:12,853 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:50:12,887 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:50:12,888 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:50:12,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:12 BoogieIcfgContainer [2022-11-20 10:50:12,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:50:12,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:50:12,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:50:12,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:50:12,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:48:07" (1/3) ... [2022-11-20 10:50:12,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcf8294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:12, skipping insertion in model container [2022-11-20 10:50:12,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:48:12" (2/3) ... [2022-11-20 10:50:12,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcf8294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:12, skipping insertion in model container [2022-11-20 10:50:12,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:12" (3/3) ... [2022-11-20 10:50:12,908 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 10:50:12,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:50:12,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:50:13,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:50:13,072 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;@771eadc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:50:13,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:50:13,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 2857 states, 1986 states have (on average 1.378147029204431) internal successors, (2737), 2009 states have internal predecessors, (2737), 737 states have call successors, (737), 133 states have call predecessors, (737), 132 states have return successors, (726), 726 states have call predecessors, (726), 726 states have call successors, (726) [2022-11-20 10:50:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-20 10:50:13,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:13,229 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:13,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:13,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash -672622393, now seen corresponding path program 1 times [2022-11-20 10:50:13,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:13,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948512628] [2022-11-20 10:50:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:13,270 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 10:50:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:13,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:13,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:18,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 5938 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:50:18,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5147 backedges. 1391 proven. 0 refuted. 0 times theorem prover too weak. 3756 trivial. 0 not checked. [2022-11-20 10:50:18,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:50:18,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:50:18,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948512628] [2022-11-20 10:50:18,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948512628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:18,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:18,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:19,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999228942] [2022-11-20 10:50:19,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:19,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:50:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:19,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:50:19,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:50:19,051 INFO L87 Difference]: Start difference. First operand has 2857 states, 1986 states have (on average 1.378147029204431) internal successors, (2737), 2009 states have internal predecessors, (2737), 737 states have call successors, (737), 133 states have call predecessors, (737), 132 states have return successors, (726), 726 states have call predecessors, (726), 726 states have call successors, (726) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:50:19,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:19,394 INFO L93 Difference]: Finished difference Result 5709 states and 8691 transitions. [2022-11-20 10:50:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:50:19,397 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 625 [2022-11-20 10:50:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:19,438 INFO L225 Difference]: With dead ends: 5709 [2022-11-20 10:50:19,439 INFO L226 Difference]: Without dead ends: 2834 [2022-11-20 10:50:19,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:50:19,475 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4195 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:19,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4195 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:50:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-11-20 10:50:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2834. [2022-11-20 10:50:19,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 1976 states have (on average 1.3714574898785425) internal successors, (2710), 1986 states have internal predecessors, (2710), 726 states have call successors, (726), 132 states have call predecessors, (726), 131 states have return successors, (725), 725 states have call predecessors, (725), 725 states have call successors, (725) [2022-11-20 10:50:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 4161 transitions. [2022-11-20 10:50:19,731 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 4161 transitions. Word has length 625 [2022-11-20 10:50:19,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:19,733 INFO L495 AbstractCegarLoop]: Abstraction has 2834 states and 4161 transitions. [2022-11-20 10:50:19,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:50:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 4161 transitions. [2022-11-20 10:50:19,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-20 10:50:19,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:19,758 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:19,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:19,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:19,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:19,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:19,972 INFO L85 PathProgramCache]: Analyzing trace with hash 923326879, now seen corresponding path program 1 times [2022-11-20 10:50:19,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:19,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083327456] [2022-11-20 10:50:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:19,984 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 10:50:19,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:19,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:20,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:28,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 5938 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:50:28,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5147 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 4940 trivial. 0 not checked. [2022-11-20 10:50:28,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:50:28,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:50:28,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083327456] [2022-11-20 10:50:28,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083327456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:28,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:28,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:50:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943441937] [2022-11-20 10:50:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:28,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:50:28,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:28,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:50:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:28,804 INFO L87 Difference]: Start difference. First operand 2834 states and 4161 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 10:50:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:32,951 INFO L93 Difference]: Finished difference Result 5630 states and 8525 transitions. [2022-11-20 10:50:32,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:50:32,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 625 [2022-11-20 10:50:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:32,977 INFO L225 Difference]: With dead ends: 5630 [2022-11-20 10:50:32,978 INFO L226 Difference]: Without dead ends: 2835 [2022-11-20 10:50:33,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:50:33,003 INFO L413 NwaCegarLoop]: 4134 mSDtfsCounter, 6 mSDsluCounter, 16463 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20597 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:33,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20597 Invalid, 242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 10:50:33,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-11-20 10:50:33,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2835. [2022-11-20 10:50:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 1977 states have (on average 1.3712696004046536) internal successors, (2711), 1987 states have internal predecessors, (2711), 726 states have call successors, (726), 132 states have call predecessors, (726), 131 states have return successors, (725), 725 states have call predecessors, (725), 725 states have call successors, (725) [2022-11-20 10:50:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 4162 transitions. [2022-11-20 10:50:33,124 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 4162 transitions. Word has length 625 [2022-11-20 10:50:33,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:33,129 INFO L495 AbstractCegarLoop]: Abstraction has 2835 states and 4162 transitions. [2022-11-20 10:50:33,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 10:50:33,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 4162 transitions. [2022-11-20 10:50:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2022-11-20 10:50:33,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:33,150 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:33,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:33,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:33,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:33,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1341706654, now seen corresponding path program 1 times [2022-11-20 10:50:33,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:33,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742671325] [2022-11-20 10:50:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:33,377 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 10:50:33,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:33,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:33,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:41,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 6198 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:50:41,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5999 backedges. 276 proven. 1 refuted. 0 times theorem prover too weak. 5722 trivial. 0 not checked. [2022-11-20 10:50:42,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5999 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 5768 trivial. 0 not checked. [2022-11-20 10:50:46,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:50:46,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742671325] [2022-11-20 10:50:46,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742671325] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:50:46,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:50:46,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 10:50:46,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555879558] [2022-11-20 10:50:46,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:50:46,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:50:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:50:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:50:46,058 INFO L87 Difference]: Start difference. First operand 2835 states and 4162 transitions. Second operand has 11 states, 9 states have (on average 12.222222222222221) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 10:50:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:52,187 INFO L93 Difference]: Finished difference Result 5642 states and 8541 transitions. [2022-11-20 10:50:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:50:52,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.222222222222221) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) Word has length 647 [2022-11-20 10:50:52,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:52,211 INFO L225 Difference]: With dead ends: 5642 [2022-11-20 10:50:52,211 INFO L226 Difference]: Without dead ends: 2851 [2022-11-20 10:50:52,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1283 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:50:52,238 INFO L413 NwaCegarLoop]: 4136 mSDtfsCounter, 16 mSDsluCounter, 24724 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28860 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:52,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 28860 Invalid, 378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-20 10:50:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-11-20 10:50:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2851. [2022-11-20 10:50:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 1988 states have (on average 1.369718309859155) internal successors, (2723), 1998 states have internal predecessors, (2723), 728 states have call successors, (728), 135 states have call predecessors, (728), 134 states have return successors, (727), 727 states have call predecessors, (727), 727 states have call successors, (727) [2022-11-20 10:50:52,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 4178 transitions. [2022-11-20 10:50:52,385 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 4178 transitions. Word has length 647 [2022-11-20 10:50:52,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:52,387 INFO L495 AbstractCegarLoop]: Abstraction has 2851 states and 4178 transitions. [2022-11-20 10:50:52,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.222222222222221) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 10:50:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 4178 transitions. [2022-11-20 10:50:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-11-20 10:50:52,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:52,416 INFO L195 NwaCegarLoop]: trace histogram [40, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:52,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:52,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:52,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:52,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:52,639 INFO L85 PathProgramCache]: Analyzing trace with hash -583388453, now seen corresponding path program 1 times [2022-11-20 10:50:52,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:52,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602828504] [2022-11-20 10:50:52,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:52,647 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 10:50:52,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:52,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:50:52,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:01,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 6378 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:51:01,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6887 backedges. 367 proven. 3 refuted. 0 times theorem prover too weak. 6517 trivial. 0 not checked. [2022-11-20 10:51:02,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6887 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 6563 trivial. 0 not checked. [2022-11-20 10:51:06,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:06,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602828504] [2022-11-20 10:51:06,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602828504] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:51:06,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:51:06,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 10:51:06,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430554300] [2022-11-20 10:51:06,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:51:06,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:51:06,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:51:06,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:51:06,342 INFO L87 Difference]: Start difference. First operand 2851 states and 4178 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 10:51:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:14,139 INFO L93 Difference]: Finished difference Result 5668 states and 8558 transitions. [2022-11-20 10:51:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:51:14,140 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) Word has length 665 [2022-11-20 10:51:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:14,168 INFO L225 Difference]: With dead ends: 5668 [2022-11-20 10:51:14,168 INFO L226 Difference]: Without dead ends: 2858 [2022-11-20 10:51:14,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1332 GetRequests, 1317 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:51:14,197 INFO L413 NwaCegarLoop]: 4137 mSDtfsCounter, 15 mSDsluCounter, 32966 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 37103 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:14,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 37103 Invalid, 468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-20 10:51:14,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2022-11-20 10:51:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2858. [2022-11-20 10:51:14,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 1994 states have (on average 1.3696088264794384) internal successors, (2731), 2004 states have internal predecessors, (2731), 728 states have call successors, (728), 136 states have call predecessors, (728), 135 states have return successors, (727), 727 states have call predecessors, (727), 727 states have call successors, (727) [2022-11-20 10:51:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 4186 transitions. [2022-11-20 10:51:14,333 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 4186 transitions. Word has length 665 [2022-11-20 10:51:14,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:14,334 INFO L495 AbstractCegarLoop]: Abstraction has 2858 states and 4186 transitions. [2022-11-20 10:51:14,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 10:51:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 4186 transitions. [2022-11-20 10:51:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2022-11-20 10:51:14,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:14,347 INFO L195 NwaCegarLoop]: trace histogram [55, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:14,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:14,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:14,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:14,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:14,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1922869875, now seen corresponding path program 2 times [2022-11-20 10:51:14,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:14,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471075461] [2022-11-20 10:51:14,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:51:14,580 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 10:51:14,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:14,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:14,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:18,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:51:18,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:51:18,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:51:19,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7952 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7952 trivial. 0 not checked. [2022-11-20 10:51:19,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:51:19,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:19,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471075461] [2022-11-20 10:51:19,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471075461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:19,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:19,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:51:19,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433570453] [2022-11-20 10:51:19,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:19,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:51:19,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:51:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:51:19,380 INFO L87 Difference]: Start difference. First operand 2858 states and 4186 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:51:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:20,334 INFO L93 Difference]: Finished difference Result 8336 states and 12347 transitions. [2022-11-20 10:51:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:51:20,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 678 [2022-11-20 10:51:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:20,376 INFO L225 Difference]: With dead ends: 8336 [2022-11-20 10:51:20,377 INFO L226 Difference]: Without dead ends: 5590 [2022-11-20 10:51:20,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 676 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 10:51:20,392 INFO L413 NwaCegarLoop]: 4912 mSDtfsCounter, 4135 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4135 SdHoareTripleChecker+Valid, 8965 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:20,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4135 Valid, 8965 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:51:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2022-11-20 10:51:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5587. [2022-11-20 10:51:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5587 states, 3915 states have (on average 1.3742017879948913) internal successors, (5380), 3935 states have internal predecessors, (5380), 1406 states have call successors, (1406), 266 states have call predecessors, (1406), 265 states have return successors, (1452), 1405 states have call predecessors, (1452), 1405 states have call successors, (1452) [2022-11-20 10:51:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5587 states to 5587 states and 8238 transitions. [2022-11-20 10:51:20,762 INFO L78 Accepts]: Start accepts. Automaton has 5587 states and 8238 transitions. Word has length 678 [2022-11-20 10:51:20,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:20,766 INFO L495 AbstractCegarLoop]: Abstraction has 5587 states and 8238 transitions. [2022-11-20 10:51:20,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:51:20,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5587 states and 8238 transitions. [2022-11-20 10:51:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2022-11-20 10:51:20,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:20,776 INFO L195 NwaCegarLoop]: trace histogram [55, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:20,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:20,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:20,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2129248376, now seen corresponding path program 1 times [2022-11-20 10:51:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:21,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115899551] [2022-11-20 10:51:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:21,003 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 10:51:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:21,005 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:21,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:29,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 6537 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:51:29,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7952 backedges. 484 proven. 6 refuted. 0 times theorem prover too weak. 7462 trivial. 0 not checked. [2022-11-20 10:51:30,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:51:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7952 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 7508 trivial. 0 not checked. [2022-11-20 10:51:35,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:35,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115899551] [2022-11-20 10:51:35,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115899551] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:51:35,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:51:35,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 10:51:35,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559483278] [2022-11-20 10:51:35,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:51:35,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:51:35,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:35,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:51:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:51:35,950 INFO L87 Difference]: Start difference. First operand 5587 states and 8238 transitions. Second operand has 15 states, 13 states have (on average 8.692307692307692) internal successors, (113), 15 states have internal predecessors, (113), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 10:51:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:44,088 INFO L93 Difference]: Finished difference Result 11139 states and 16932 transitions. [2022-11-20 10:51:44,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:51:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.692307692307692) internal successors, (113), 15 states have internal predecessors, (113), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) Word has length 677 [2022-11-20 10:51:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:44,129 INFO L225 Difference]: With dead ends: 11139 [2022-11-20 10:51:44,129 INFO L226 Difference]: Without dead ends: 5589 [2022-11-20 10:51:44,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1357 GetRequests, 1339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:51:44,163 INFO L413 NwaCegarLoop]: 4138 mSDtfsCounter, 25 mSDsluCounter, 32978 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 37116 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:44,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 37116 Invalid, 502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-20 10:51:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5589 states. [2022-11-20 10:51:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5589 to 5589. [2022-11-20 10:51:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5589 states, 3917 states have (on average 1.3740107224917029) internal successors, (5382), 3937 states have internal predecessors, (5382), 1406 states have call successors, (1406), 266 states have call predecessors, (1406), 265 states have return successors, (1452), 1405 states have call predecessors, (1452), 1405 states have call successors, (1452) [2022-11-20 10:51:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5589 states to 5589 states and 8240 transitions. [2022-11-20 10:51:44,529 INFO L78 Accepts]: Start accepts. Automaton has 5589 states and 8240 transitions. Word has length 677 [2022-11-20 10:51:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:44,530 INFO L495 AbstractCegarLoop]: Abstraction has 5589 states and 8240 transitions. [2022-11-20 10:51:44,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.692307692307692) internal successors, (113), 15 states have internal predecessors, (113), 4 states have call successors, (82), 2 states have call predecessors, (82), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 10:51:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5589 states and 8240 transitions. [2022-11-20 10:51:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2022-11-20 10:51:44,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:44,543 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:44,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:44,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:44,767 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:44,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash -674061445, now seen corresponding path program 2 times [2022-11-20 10:51:44,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:44,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819809295] [2022-11-20 10:51:44,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:51:44,777 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 10:51:44,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:44,779 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:44,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:48,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:51:48,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:51:49,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 4044 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:51:49,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:51:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9242 trivial. 0 not checked. [2022-11-20 10:51:49,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:51:49,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:51:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819809295] [2022-11-20 10:51:49,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819809295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:49,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:49,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:51:49,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534073002] [2022-11-20 10:51:49,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:49,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:51:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:51:49,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:51:49,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:51:49,515 INFO L87 Difference]: Start difference. First operand 5589 states and 8240 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:51:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:51:50,562 INFO L93 Difference]: Finished difference Result 13793 states and 20477 transitions. [2022-11-20 10:51:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:51:50,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 695 [2022-11-20 10:51:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:51:50,648 INFO L225 Difference]: With dead ends: 13793 [2022-11-20 10:51:50,648 INFO L226 Difference]: Without dead ends: 8320 [2022-11-20 10:51:50,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 693 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 10:51:50,680 INFO L413 NwaCegarLoop]: 4837 mSDtfsCounter, 4137 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 8890 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:51:50,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 8890 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:51:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8320 states. [2022-11-20 10:51:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8320 to 8317. [2022-11-20 10:51:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8317 states, 5839 states have (on average 1.3754067477307759) internal successors, (8031), 5869 states have internal predecessors, (8031), 2082 states have call successors, (2082), 396 states have call predecessors, (2082), 395 states have return successors, (2175), 2081 states have call predecessors, (2175), 2081 states have call successors, (2175) [2022-11-20 10:51:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 12288 transitions. [2022-11-20 10:51:51,192 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 12288 transitions. Word has length 695 [2022-11-20 10:51:51,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:51:51,193 INFO L495 AbstractCegarLoop]: Abstraction has 8317 states and 12288 transitions. [2022-11-20 10:51:51,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:51:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 12288 transitions. [2022-11-20 10:51:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2022-11-20 10:51:51,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:51,204 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:51,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:51,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:51,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:51,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:51,428 INFO L85 PathProgramCache]: Analyzing trace with hash 272638764, now seen corresponding path program 1 times [2022-11-20 10:51:51,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:51,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417284296] [2022-11-20 10:51:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:51,434 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 10:51:51,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:51,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:51:51,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:15,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 6706 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:15,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9242 trivial. 0 not checked. [2022-11-20 10:52:15,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:15,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:15,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417284296] [2022-11-20 10:52:15,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417284296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:15,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:15,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:15,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936934222] [2022-11-20 10:52:15,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:15,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:15,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:15,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:15,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:15,826 INFO L87 Difference]: Start difference. First operand 8317 states and 12288 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:52:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:16,889 INFO L93 Difference]: Finished difference Result 19244 states and 28562 transitions. [2022-11-20 10:52:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 694 [2022-11-20 10:52:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:16,950 INFO L225 Difference]: With dead ends: 19244 [2022-11-20 10:52:16,950 INFO L226 Difference]: Without dead ends: 11043 [2022-11-20 10:52:16,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 692 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 10:52:16,983 INFO L413 NwaCegarLoop]: 4834 mSDtfsCounter, 4127 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:16,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4127 Valid, 8887 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:52:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11043 states. [2022-11-20 10:52:17,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11043 to 11040. [2022-11-20 10:52:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11040 states, 7758 states have (on average 1.3757411704047435) internal successors, (10673), 7798 states have internal predecessors, (10673), 2756 states have call successors, (2756), 526 states have call predecessors, (2756), 525 states have return successors, (2896), 2755 states have call predecessors, (2896), 2755 states have call successors, (2896) [2022-11-20 10:52:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11040 states to 11040 states and 16325 transitions. [2022-11-20 10:52:17,667 INFO L78 Accepts]: Start accepts. Automaton has 11040 states and 16325 transitions. Word has length 694 [2022-11-20 10:52:17,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:17,668 INFO L495 AbstractCegarLoop]: Abstraction has 11040 states and 16325 transitions. [2022-11-20 10:52:17,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:52:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 11040 states and 16325 transitions. [2022-11-20 10:52:17,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2022-11-20 10:52:17,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:17,679 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:17,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:17,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:17,904 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash -12851517, now seen corresponding path program 2 times [2022-11-20 10:52:17,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:17,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098963953] [2022-11-20 10:52:17,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:52:17,908 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 10:52:17,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:17,909 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:17,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:22,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:52:22,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:52:22,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:22,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9242 trivial. 0 not checked. [2022-11-20 10:52:22,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:22,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:22,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098963953] [2022-11-20 10:52:22,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098963953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:22,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:22,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:22,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665491539] [2022-11-20 10:52:22,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:22,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:22,704 INFO L87 Difference]: Start difference. First operand 11040 states and 16325 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:52:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:23,773 INFO L93 Difference]: Finished difference Result 24637 states and 36521 transitions. [2022-11-20 10:52:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 692 [2022-11-20 10:52:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:23,862 INFO L225 Difference]: With dead ends: 24637 [2022-11-20 10:52:23,862 INFO L226 Difference]: Without dead ends: 13709 [2022-11-20 10:52:23,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 690 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 10:52:23,919 INFO L413 NwaCegarLoop]: 5557 mSDtfsCounter, 4031 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4031 SdHoareTripleChecker+Valid, 9610 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:23,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4031 Valid, 9610 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:52:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13709 states. [2022-11-20 10:52:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13709 to 13706. [2022-11-20 10:52:24,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13706 states, 9632 states have (on average 1.3769725913621262) internal successors, (13263), 9702 states have internal predecessors, (13263), 3424 states have call successors, (3424), 655 states have call predecessors, (3424), 649 states have return successors, (3586), 3398 states have call predecessors, (3586), 3423 states have call successors, (3586) [2022-11-20 10:52:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13706 states to 13706 states and 20273 transitions. [2022-11-20 10:52:24,913 INFO L78 Accepts]: Start accepts. Automaton has 13706 states and 20273 transitions. Word has length 692 [2022-11-20 10:52:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:24,914 INFO L495 AbstractCegarLoop]: Abstraction has 13706 states and 20273 transitions. [2022-11-20 10:52:24,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:52:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 13706 states and 20273 transitions. [2022-11-20 10:52:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2022-11-20 10:52:24,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:24,925 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:25,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:25,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:25,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:25,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:25,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1666916109, now seen corresponding path program 1 times [2022-11-20 10:52:25,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:25,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642732519] [2022-11-20 10:52:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:25,153 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 10:52:25,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:25,160 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:25,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:49,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 6730 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:49,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9242 trivial. 0 not checked. [2022-11-20 10:52:49,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:49,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:49,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642732519] [2022-11-20 10:52:49,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642732519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:49,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:49,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:49,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752298416] [2022-11-20 10:52:49,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:49,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:49,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:49,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:49,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:49,973 INFO L87 Difference]: Start difference. First operand 13706 states and 20273 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:52:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:50,847 INFO L93 Difference]: Finished difference Result 24974 states and 36890 transitions. [2022-11-20 10:52:50,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:50,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 697 [2022-11-20 10:52:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:50,919 INFO L225 Difference]: With dead ends: 24974 [2022-11-20 10:52:50,919 INFO L226 Difference]: Without dead ends: 13697 [2022-11-20 10:52:50,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 695 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 10:52:50,968 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 4156 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:50,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 4156 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:52:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13697 states. [2022-11-20 10:52:51,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13697 to 13697. [2022-11-20 10:52:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13697 states, 9628 states have (on average 1.3766098878271706) internal successors, (13254), 9697 states have internal predecessors, (13254), 3419 states have call successors, (3419), 655 states have call predecessors, (3419), 649 states have return successors, (3578), 3394 states have call predecessors, (3578), 3418 states have call successors, (3578) [2022-11-20 10:52:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13697 states to 13697 states and 20251 transitions. [2022-11-20 10:52:51,949 INFO L78 Accepts]: Start accepts. Automaton has 13697 states and 20251 transitions. Word has length 697 [2022-11-20 10:52:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:51,951 INFO L495 AbstractCegarLoop]: Abstraction has 13697 states and 20251 transitions. [2022-11-20 10:52:51,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:52:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13697 states and 20251 transitions. [2022-11-20 10:52:51,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-11-20 10:52:51,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:51,962 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:52,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:52,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:52,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:52,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:52,184 INFO L85 PathProgramCache]: Analyzing trace with hash 466453842, now seen corresponding path program 1 times [2022-11-20 10:52:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:52,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767439228] [2022-11-20 10:52:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:52,188 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 10:52:52,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:52,189 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:52:52,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:16,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 6732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:16,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9242 trivial. 0 not checked. [2022-11-20 10:53:17,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:17,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:17,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767439228] [2022-11-20 10:53:17,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767439228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:17,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:17,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:17,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743256584] [2022-11-20 10:53:17,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:17,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:17,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:17,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:17,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:17,108 INFO L87 Difference]: Start difference. First operand 13697 states and 20251 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:53:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:18,645 INFO L93 Difference]: Finished difference Result 24957 states and 36849 transitions. [2022-11-20 10:53:18,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:18,645 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), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 698 [2022-11-20 10:53:18,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:18,723 INFO L225 Difference]: With dead ends: 24957 [2022-11-20 10:53:18,723 INFO L226 Difference]: Without dead ends: 13688 [2022-11-20 10:53:18,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 696 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 10:53:18,784 INFO L413 NwaCegarLoop]: 4152 mSDtfsCounter, 4140 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 4152 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:18,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4140 Valid, 4152 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:53:18,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2022-11-20 10:53:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 13688. [2022-11-20 10:53:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13688 states, 9624 states have (on average 1.3762468827930174) internal successors, (13245), 9692 states have internal predecessors, (13245), 3414 states have call successors, (3414), 655 states have call predecessors, (3414), 649 states have return successors, (3570), 3390 states have call predecessors, (3570), 3413 states have call successors, (3570) [2022-11-20 10:53:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13688 states to 13688 states and 20229 transitions. [2022-11-20 10:53:19,894 INFO L78 Accepts]: Start accepts. Automaton has 13688 states and 20229 transitions. Word has length 698 [2022-11-20 10:53:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:19,895 INFO L495 AbstractCegarLoop]: Abstraction has 13688 states and 20229 transitions. [2022-11-20 10:53:19,896 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), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:53:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13688 states and 20229 transitions. [2022-11-20 10:53:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-11-20 10:53:19,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:19,912 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:53:20,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:20,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:20,128 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:20,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1172000691, now seen corresponding path program 1 times [2022-11-20 10:53:20,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:20,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770528831] [2022-11-20 10:53:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:20,136 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 10:53:20,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:20,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:20,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:44,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 6624 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:44,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9239 trivial. 0 not checked. [2022-11-20 10:53:45,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:45,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:45,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770528831] [2022-11-20 10:53:45,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770528831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:45,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:45,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:45,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632630720] [2022-11-20 10:53:45,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:45,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:45,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:45,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:45,100 INFO L87 Difference]: Start difference. First operand 13688 states and 20229 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:53:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:46,210 INFO L93 Difference]: Finished difference Result 27250 states and 40278 transitions. [2022-11-20 10:53:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:46,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 698 [2022-11-20 10:53:46,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:46,285 INFO L225 Difference]: With dead ends: 27250 [2022-11-20 10:53:46,286 INFO L226 Difference]: Without dead ends: 13678 [2022-11-20 10:53:46,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 696 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 10:53:46,347 INFO L413 NwaCegarLoop]: 4148 mSDtfsCounter, 4133 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4133 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:46,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4133 Valid, 4148 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:53:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13678 states. [2022-11-20 10:53:47,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13678 to 13678. [2022-11-20 10:53:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13678 states, 9619 states have (on average 1.375922653082441) internal successors, (13235), 9687 states have internal predecessors, (13235), 3409 states have call successors, (3409), 655 states have call predecessors, (3409), 649 states have return successors, (3561), 3385 states have call predecessors, (3561), 3408 states have call successors, (3561) [2022-11-20 10:53:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13678 states to 13678 states and 20205 transitions. [2022-11-20 10:53:47,735 INFO L78 Accepts]: Start accepts. Automaton has 13678 states and 20205 transitions. Word has length 698 [2022-11-20 10:53:47,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:47,736 INFO L495 AbstractCegarLoop]: Abstraction has 13678 states and 20205 transitions. [2022-11-20 10:53:47,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:53:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 13678 states and 20205 transitions. [2022-11-20 10:53:47,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2022-11-20 10:53:47,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:47,753 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:53:47,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:47,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:47,975 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash 55146724, now seen corresponding path program 1 times [2022-11-20 10:53:47,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:47,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383273111] [2022-11-20 10:53:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:47,981 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 10:53:47,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:47,982 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:53:47,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:12,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 6620 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:54:12,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 9239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9239 trivial. 0 not checked. [2022-11-20 10:54:12,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:12,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:12,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383273111] [2022-11-20 10:54:12,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383273111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:12,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:12,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:12,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313001738] [2022-11-20 10:54:12,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:12,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:12,782 INFO L87 Difference]: Start difference. First operand 13678 states and 20205 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:54:13,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:13,945 INFO L93 Difference]: Finished difference Result 27230 states and 40230 transitions. [2022-11-20 10:54:13,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:13,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 696 [2022-11-20 10:54:13,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:14,019 INFO L225 Difference]: With dead ends: 27230 [2022-11-20 10:54:14,019 INFO L226 Difference]: Without dead ends: 13668 [2022-11-20 10:54:14,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 694 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 10:54:14,082 INFO L413 NwaCegarLoop]: 4144 mSDtfsCounter, 4131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 4144 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:14,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 4144 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:54:14,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13668 states. [2022-11-20 10:54:15,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13668 to 13668. [2022-11-20 10:54:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13668 states, 9614 states have (on average 1.375598086124402) internal successors, (13225), 9682 states have internal predecessors, (13225), 3404 states have call successors, (3404), 655 states have call predecessors, (3404), 649 states have return successors, (3552), 3380 states have call predecessors, (3552), 3403 states have call successors, (3552) [2022-11-20 10:54:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13668 states to 13668 states and 20181 transitions. [2022-11-20 10:54:15,206 INFO L78 Accepts]: Start accepts. Automaton has 13668 states and 20181 transitions. Word has length 696 [2022-11-20 10:54:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:15,207 INFO L495 AbstractCegarLoop]: Abstraction has 13668 states and 20181 transitions. [2022-11-20 10:54:15,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:54:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 13668 states and 20181 transitions. [2022-11-20 10:54:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2022-11-20 10:54:15,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:15,223 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:15,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:15,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:15,440 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:15,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:15,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1808768825, now seen corresponding path program 1 times [2022-11-20 10:54:15,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:15,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835881638] [2022-11-20 10:54:15,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:15,444 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 10:54:15,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:15,446 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:15,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:39,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 6622 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:54:39,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 9239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9239 trivial. 0 not checked. [2022-11-20 10:54:40,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:40,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:40,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835881638] [2022-11-20 10:54:40,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835881638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:40,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:40,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:40,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402796905] [2022-11-20 10:54:40,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:40,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:40,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:40,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:40,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:40,394 INFO L87 Difference]: Start difference. First operand 13668 states and 20181 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:54:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:41,477 INFO L93 Difference]: Finished difference Result 27210 states and 40182 transitions. [2022-11-20 10:54:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 697 [2022-11-20 10:54:41,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:41,547 INFO L225 Difference]: With dead ends: 27210 [2022-11-20 10:54:41,548 INFO L226 Difference]: Without dead ends: 13658 [2022-11-20 10:54:41,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 695 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 10:54:41,606 INFO L413 NwaCegarLoop]: 4140 mSDtfsCounter, 4126 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:41,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 4140 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:54:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13658 states. [2022-11-20 10:54:42,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13658 to 13658. [2022-11-20 10:54:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13658 states, 9609 states have (on average 1.3752731813924446) internal successors, (13215), 9677 states have internal predecessors, (13215), 3399 states have call successors, (3399), 655 states have call predecessors, (3399), 649 states have return successors, (3543), 3375 states have call predecessors, (3543), 3398 states have call successors, (3543) [2022-11-20 10:54:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13658 states to 13658 states and 20157 transitions. [2022-11-20 10:54:42,957 INFO L78 Accepts]: Start accepts. Automaton has 13658 states and 20157 transitions. Word has length 697 [2022-11-20 10:54:42,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:42,959 INFO L495 AbstractCegarLoop]: Abstraction has 13658 states and 20157 transitions. [2022-11-20 10:54:42,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:54:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13658 states and 20157 transitions. [2022-11-20 10:54:42,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2022-11-20 10:54:42,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:42,974 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:43,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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)] Ended with exit code 0 [2022-11-20 10:54:43,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:43,175 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:43,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:43,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1612485616, now seen corresponding path program 1 times [2022-11-20 10:54:43,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:43,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29256886] [2022-11-20 10:54:43,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:43,180 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 10:54:43,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:43,182 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:54:43,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:07,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 6618 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:07,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:07,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9239 trivial. 0 not checked. [2022-11-20 10:55:07,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:07,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:07,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29256886] [2022-11-20 10:55:07,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29256886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:07,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:07,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:07,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881670877] [2022-11-20 10:55:07,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:07,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:07,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:07,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:07,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:07,997 INFO L87 Difference]: Start difference. First operand 13658 states and 20157 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:55:09,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:09,232 INFO L93 Difference]: Finished difference Result 26416 states and 38967 transitions. [2022-11-20 10:55:09,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:55:09,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 695 [2022-11-20 10:55:09,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:09,302 INFO L225 Difference]: With dead ends: 26416 [2022-11-20 10:55:09,303 INFO L226 Difference]: Without dead ends: 12874 [2022-11-20 10:55:09,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 693 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 10:55:09,367 INFO L413 NwaCegarLoop]: 3903 mSDtfsCounter, 3891 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 3903 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:09,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3891 Valid, 3903 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:55:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12874 states. [2022-11-20 10:55:10,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12874 to 12874. [2022-11-20 10:55:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12874 states, 9060 states have (on average 1.3764900662251656) internal successors, (12471), 9122 states have internal predecessors, (12471), 3179 states have call successors, (3179), 640 states have call predecessors, (3179), 634 states have return successors, (3316), 3156 states have call predecessors, (3316), 3178 states have call successors, (3316) [2022-11-20 10:55:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12874 states to 12874 states and 18966 transitions. [2022-11-20 10:55:10,519 INFO L78 Accepts]: Start accepts. Automaton has 12874 states and 18966 transitions. Word has length 695 [2022-11-20 10:55:10,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:10,520 INFO L495 AbstractCegarLoop]: Abstraction has 12874 states and 18966 transitions. [2022-11-20 10:55:10,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:55:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12874 states and 18966 transitions. [2022-11-20 10:55:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2022-11-20 10:55:10,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:10,532 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:10,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:10,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:10,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:10,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -816754556, now seen corresponding path program 1 times [2022-11-20 10:55:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:10,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987716329] [2022-11-20 10:55:10,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:10,754 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 10:55:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:10,755 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:10,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:35,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 6651 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:35,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 9248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2022-11-20 10:55:36,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:36,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:36,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987716329] [2022-11-20 10:55:36,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987716329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:36,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:36,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:36,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584682837] [2022-11-20 10:55:36,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:36,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:36,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:36,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:36,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:36,166 INFO L87 Difference]: Start difference. First operand 12874 states and 18966 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-20 10:55:39,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:39,674 INFO L93 Difference]: Finished difference Result 37509 states and 55152 transitions. [2022-11-20 10:55:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:55:39,675 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), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 701 [2022-11-20 10:55:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:39,789 INFO L225 Difference]: With dead ends: 37509 [2022-11-20 10:55:39,789 INFO L226 Difference]: Without dead ends: 24747 [2022-11-20 10:55:39,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 699 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 10:55:39,834 INFO L413 NwaCegarLoop]: 4483 mSDtfsCounter, 3614 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 8148 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:39,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3614 Valid, 8148 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:55:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24747 states. [2022-11-20 10:55:41,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24747 to 24734. [2022-11-20 10:55:41,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24734 states, 17430 states have (on average 1.3751577739529546) internal successors, (23969), 17555 states have internal predecessors, (23969), 6055 states have call successors, (6055), 1259 states have call predecessors, (6055), 1248 states have return successors, (6302), 6009 states have call predecessors, (6302), 6054 states have call successors, (6302) [2022-11-20 10:55:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24734 states to 24734 states and 36326 transitions. [2022-11-20 10:55:42,035 INFO L78 Accepts]: Start accepts. Automaton has 24734 states and 36326 transitions. Word has length 701 [2022-11-20 10:55:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:42,036 INFO L495 AbstractCegarLoop]: Abstraction has 24734 states and 36326 transitions. [2022-11-20 10:55:42,036 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), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-20 10:55:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 24734 states and 36326 transitions. [2022-11-20 10:55:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2022-11-20 10:55:42,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:42,049 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:42,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:42,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:42,264 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1093722612, now seen corresponding path program 1 times [2022-11-20 10:55:42,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:42,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678889302] [2022-11-20 10:55:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:42,268 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 10:55:42,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:42,270 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:55:42,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:56:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:07,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 6647 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:56:07,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2022-11-20 10:56:07,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:07,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:56:07,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678889302] [2022-11-20 10:56:07,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678889302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:07,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:07,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:07,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531441624] [2022-11-20 10:56:07,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:07,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:07,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:56:07,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:07,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:07,886 INFO L87 Difference]: Start difference. First operand 24734 states and 36326 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-20 10:56:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:13,116 INFO L93 Difference]: Finished difference Result 72788 states and 106678 transitions. [2022-11-20 10:56:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:13,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 699 [2022-11-20 10:56:13,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:13,313 INFO L225 Difference]: With dead ends: 72788 [2022-11-20 10:56:13,313 INFO L226 Difference]: Without dead ends: 48166 [2022-11-20 10:56:13,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 697 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 10:56:13,395 INFO L413 NwaCegarLoop]: 4706 mSDtfsCounter, 3695 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3695 SdHoareTripleChecker+Valid, 8371 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:13,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3695 Valid, 8371 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 10:56:13,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48166 states. [2022-11-20 10:56:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48166 to 48153. [2022-11-20 10:56:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48153 states, 33939 states have (on average 1.371990924894664) internal successors, (46564), 34186 states have internal predecessors, (46564), 11742 states have call successors, (11742), 2492 states have call predecessors, (11742), 2471 states have return successors, (12181), 11654 states have call predecessors, (12181), 11741 states have call successors, (12181) [2022-11-20 10:56:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48153 states to 48153 states and 70487 transitions. [2022-11-20 10:56:18,019 INFO L78 Accepts]: Start accepts. Automaton has 48153 states and 70487 transitions. Word has length 699 [2022-11-20 10:56:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:18,020 INFO L495 AbstractCegarLoop]: Abstraction has 48153 states and 70487 transitions. [2022-11-20 10:56:18,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-20 10:56:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 48153 states and 70487 transitions. [2022-11-20 10:56:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2022-11-20 10:56:18,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:18,029 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:18,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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)] Ended with exit code 0 [2022-11-20 10:56:18,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:56:18,245 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:56:18,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash 701123868, now seen corresponding path program 1 times [2022-11-20 10:56:18,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:56:18,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949267961] [2022-11-20 10:56:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:18,251 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 10:56:18,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:56:18,252 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 10:56:18,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12d47331-7b98-401f-b983-65637a5da96b/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 (19)] Waiting until timeout for monitored process [2022-11-20 10:56:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:43,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 6734 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:56:43,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9242 trivial. 0 not checked. [2022-11-20 10:56:43,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:43,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:56:43,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949267961] [2022-11-20 10:56:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949267961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:43,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:43,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:43,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97980639] [2022-11-20 10:56:43,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:43,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:43,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:56:43,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:43,745 INFO L87 Difference]: Start difference. First operand 48153 states and 70487 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:56:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:48,347 INFO L93 Difference]: Finished difference Result 88140 states and 128821 transitions. [2022-11-20 10:56:48,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:48,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 699 [2022-11-20 10:56:48,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:48,564 INFO L225 Difference]: With dead ends: 88140 [2022-11-20 10:56:48,564 INFO L226 Difference]: Without dead ends: 48117 [2022-11-20 10:56:48,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 697 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 10:56:48,702 INFO L413 NwaCegarLoop]: 3899 mSDtfsCounter, 3886 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3886 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:48,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3886 Valid, 3899 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:56:48,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48117 states.