./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--thunderbolt--thunderbolt.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- 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 10:31:15,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:31:15,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:31:15,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:31:15,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:31:15,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:31:15,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:31:15,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:31:15,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:31:15,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:31:15,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:31:15,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:31:15,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:31:15,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:31:15,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:31:15,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:31:15,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:31:15,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:31:15,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:31:15,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:31:15,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:31:15,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:31:15,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:31:15,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:31:15,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:31:15,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:31:15,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:31:15,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:31:15,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:31:15,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:31:15,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:31:15,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:31:15,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:31:15,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:31:15,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:31:15,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:31:15,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:31:15,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:31:15,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:31:15,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:31:15,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:31:15,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:31:15,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:31:15,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:31:15,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:31:15,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:31:15,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:31:15,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:31:15,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:31:15,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:31:15,164 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:31:15,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:31:15,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:31:15,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:31:15,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:31:15,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:31:15,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:31:15,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:31:15,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:31:15,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:31:15,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:31:15,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:31:15,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:31:15,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:15,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:31:15,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:31:15,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:31:15,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:31:15,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:31:15,168 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:31:15,169 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:31:15,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:31:15,169 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_99581617-6ed9-4aef-be2a-9be820bd9f5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-11-20 10:31:15,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:31:15,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:31:15,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:31:15,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:31:15,557 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:31:15,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 10:31:18,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:31:19,266 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:31:19,268 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 10:31:19,324 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data/4393277da/0cecc8e9557440c097631a2b5408fc70/FLAG824bdbfd8 [2022-11-20 10:31:19,344 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data/4393277da/0cecc8e9557440c097631a2b5408fc70 [2022-11-20 10:31:19,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:31:19,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:31:19,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:19,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:31:19,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:31:19,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:19" (1/1) ... [2022-11-20 10:31:19,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d47d7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:19, skipping insertion in model container [2022-11-20 10:31:19,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:19" (1/1) ... [2022-11-20 10:31:19,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:31:19,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:21,440 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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:728) 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 10:31:21,446 INFO L158 Benchmark]: Toolchain (without parser) took 2096.85ms. Allocated memory is still 203.4MB. Free memory was 164.9MB in the beginning and 80.7MB in the end (delta: 84.2MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2022-11-20 10:31:21,447 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:31:21,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2094.13ms. Allocated memory is still 203.4MB. Free memory was 164.9MB in the beginning and 80.7MB in the end (delta: 84.2MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2022-11-20 10:31:21,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2094.13ms. Allocated memory is still 203.4MB. Free memory was 164.9MB in the beginning and 80.7MB in the end (delta: 84.2MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- 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 10:31:23,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:31:23,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:31:23,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:31:23,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:31:23,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:31:23,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:31:23,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:31:23,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:31:23,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:31:23,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:31:23,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:31:23,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:31:23,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:31:23,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:31:23,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:31:23,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:31:23,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:31:23,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:31:23,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:31:23,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:31:23,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:31:23,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:31:23,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:31:23,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:31:23,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:31:23,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:31:23,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:31:23,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:31:23,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:31:23,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:31:23,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:31:23,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:31:23,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:31:23,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:31:23,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:31:23,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:31:23,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:31:23,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:31:23,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:31:23,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:31:23,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:31:23,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:31:23,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:31:23,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:31:23,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:31:23,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:31:23,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:31:23,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:31:23,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:31:23,988 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:31:23,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:31:23,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:31:23,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:31:23,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:31:23,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:31:23,991 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:31:23,991 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:31:23,991 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:31:23,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:31:23,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:31:23,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:31:23,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:31:23,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:31:23,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:31:23,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:23,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:31:23,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:31:23,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:31:23,994 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:31:23,994 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:31:23,994 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:31:23,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:31:23,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:31:23,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:31:23,995 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_99581617-6ed9-4aef-be2a-9be820bd9f5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2022-11-20 10:31:24,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:31:24,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:31:24,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:31:24,384 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:31:24,385 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:31:24,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 10:31:27,494 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:31:28,076 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:31:28,077 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 10:31:28,132 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data/7880b170b/6b8119a0aea04e6a80e6b18998d2c52d/FLAG61badf5f1 [2022-11-20 10:31:28,157 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/data/7880b170b/6b8119a0aea04e6a80e6b18998d2c52d [2022-11-20 10:31:28,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:31:28,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:31:28,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:28,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:31:28,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:31:28,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:28" (1/1) ... [2022-11-20 10:31:28,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d00bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:28, skipping insertion in model container [2022-11-20 10:31:28,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:28" (1/1) ... [2022-11-20 10:31:28,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:31:28,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:30,935 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_99581617-6ed9-4aef-be2a-9be820bd9f5c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-11-20 10:31:31,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:31,048 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:31:31,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:31,822 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_99581617-6ed9-4aef-be2a-9be820bd9f5c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-11-20 10:31:31,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:31,850 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:31:32,471 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_99581617-6ed9-4aef-be2a-9be820bd9f5c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2022-11-20 10:31:32,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:32,632 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:31:32,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32 WrapperNode [2022-11-20 10:31:32,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:32,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:32,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:31:32,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:31:32,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:32,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,008 INFO L138 Inliner]: procedures = 371, calls = 3809, calls flagged for inlining = 134, calls inlined = 130, statements flattened = 6921 [2022-11-20 10:31:33,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:33,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:31:33,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:31:33,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:31:33,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:31:33,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:31:33,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:31:33,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:31:33,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (1/1) ... [2022-11-20 10:31:33,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:33,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:31:33,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:31:33,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:31:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 10:31:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 10:31:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-11-20 10:31:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-11-20 10:31:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:31:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-11-20 10:31:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-11-20 10:31:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-11-20 10:31:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-11-20 10:31:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:31:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:31:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-11-20 10:31:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-11-20 10:31:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-11-20 10:31:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-11-20 10:31:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-11-20 10:31:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-11-20 10:31:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:31:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:31:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:31:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:31:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:31:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:31:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:31:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:31:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:31:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-11-20 10:31:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-11-20 10:31:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:31:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:31:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-11-20 10:31:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-11-20 10:31:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-11-20 10:31:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-11-20 10:31:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-11-20 10:31:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-11-20 10:31:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-11-20 10:31:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-11-20 10:31:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-20 10:31:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-20 10:31:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-11-20 10:31:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-11-20 10:31:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-20 10:31:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-20 10:31:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-11-20 10:31:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-11-20 10:31:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-11-20 10:31:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-11-20 10:31:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-11-20 10:31:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-11-20 10:31:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-11-20 10:31:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-11-20 10:31:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-20 10:31:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-20 10:31:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-11-20 10:31:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-11-20 10:31:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:31:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:31:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:31:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:31:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-11-20 10:31:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-11-20 10:31:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-11-20 10:31:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-11-20 10:31:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-11-20 10:31:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-11-20 10:31:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-11-20 10:31:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-11-20 10:31:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-20 10:31:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-20 10:31:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-11-20 10:31:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-11-20 10:31:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-11-20 10:31:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-11-20 10:31:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:31:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:31:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-11-20 10:31:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-11-20 10:31:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 10:31:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 10:31:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-11-20 10:31:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-11-20 10:31:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-11-20 10:31:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-11-20 10:31:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-11-20 10:31:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-11-20 10:31:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-11-20 10:31:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-11-20 10:31:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-11-20 10:31:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-11-20 10:31:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-11-20 10:31:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-11-20 10:31:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-11-20 10:31:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-11-20 10:31:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:31:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:31:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:31:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-11-20 10:31:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-11-20 10:31:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-11-20 10:31:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-11-20 10:31:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-11-20 10:31:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-11-20 10:31:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:31:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 10:31:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 10:31:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 10:31:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 10:31:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 10:31:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 10:31:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-20 10:31:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-20 10:31:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-11-20 10:31:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-11-20 10:31:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:31:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:31:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:31:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:31:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:31:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-11-20 10:31:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-11-20 10:31:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:31:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-11-20 10:31:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-11-20 10:31:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-11-20 10:31:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-11-20 10:31:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:31:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:31:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:31:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-11-20 10:31:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-11-20 10:31:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-11-20 10:31:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-11-20 10:31:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 10:31:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 10:31:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 10:31:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 10:31:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 10:31:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 10:31:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 10:31:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 10:31:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-11-20 10:31:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-11-20 10:31:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-11-20 10:31:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-11-20 10:31:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:31:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:31:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-11-20 10:31:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-11-20 10:31:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 10:31:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 10:31:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-11-20 10:31:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-11-20 10:31:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-11-20 10:31:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-11-20 10:31:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-11-20 10:31:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-11-20 10:31:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-11-20 10:31:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-11-20 10:31:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-11-20 10:31:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-11-20 10:31:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 10:31:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 10:31:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-11-20 10:31:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-11-20 10:31:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-20 10:31:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-20 10:31:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-11-20 10:31:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-11-20 10:31:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-11-20 10:31:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-11-20 10:31:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-11-20 10:31:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-11-20 10:31:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-11-20 10:31:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-11-20 10:31:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:31:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:31:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-11-20 10:31:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-11-20 10:31:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-20 10:31:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-20 10:31:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-20 10:31:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-20 10:31:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-11-20 10:31:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-11-20 10:31:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:31:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:31:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-11-20 10:31:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-11-20 10:31:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-11-20 10:31:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-11-20 10:31:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-11-20 10:31:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-11-20 10:31:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:31:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:31:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-11-20 10:31:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-11-20 10:31:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-11-20 10:31:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-11-20 10:31:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-11-20 10:31:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-11-20 10:31:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 10:31:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 10:31:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:31:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:31:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:31:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:31:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:31:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:31:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-11-20 10:31:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-11-20 10:31:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:31:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:31:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-11-20 10:31:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-11-20 10:31:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-11-20 10:31:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-11-20 10:31:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:31:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-11-20 10:31:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-11-20 10:31:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-20 10:31:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-11-20 10:31:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-11-20 10:31:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-20 10:31:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-20 10:31:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-11-20 10:31:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-11-20 10:31:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:31:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-11-20 10:31:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-11-20 10:31:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-11-20 10:31:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-11-20 10:31:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:31:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:31:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:31:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:31:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-11-20 10:31:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-11-20 10:31:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-11-20 10:31:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-11-20 10:31:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-11-20 10:31:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-11-20 10:31:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-11-20 10:31:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-11-20 10:31:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-11-20 10:31:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-11-20 10:31:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-11-20 10:31:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-11-20 10:31:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-11-20 10:31:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-11-20 10:31:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-11-20 10:31:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-11-20 10:31:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-11-20 10:31:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-11-20 10:31:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-11-20 10:31:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-11-20 10:31:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 10:31:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 10:31:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-11-20 10:31:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-11-20 10:31:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-20 10:31:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-20 10:31:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-11-20 10:31:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-11-20 10:31:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:31:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:31:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-11-20 10:31:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-11-20 10:31:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:31:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:31:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-11-20 10:31:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-11-20 10:31:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-11-20 10:31:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-11-20 10:31:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-20 10:31:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-20 10:31:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:31:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-11-20 10:31:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-11-20 10:31:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:31:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:31:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-11-20 10:31:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-11-20 10:31:34,849 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:31:34,853 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:31:35,951 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:33:30,723 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:33:30,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:33:30,743 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:33:30,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:30 BoogieIcfgContainer [2022-11-20 10:33:30,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:33:30,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:33:30,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:33:30,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:33:30,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:31:28" (1/3) ... [2022-11-20 10:33:30,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434420f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:30, skipping insertion in model container [2022-11-20 10:33:30,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:32" (2/3) ... [2022-11-20 10:33:30,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434420f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:30, skipping insertion in model container [2022-11-20 10:33:30,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:30" (3/3) ... [2022-11-20 10:33:30,757 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 10:33:30,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:33:30,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:33:30,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:33:30,900 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;@3b03d49a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:33:30,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:33:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 2413 states, 1622 states have (on average 1.3255240443896423) internal successors, (2150), 1660 states have internal predecessors, (2150), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) [2022-11-20 10:33:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 10:33:30,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:30,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-20 10:33:30,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:30,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:30,951 INFO L85 PathProgramCache]: Analyzing trace with hash 835883302, now seen corresponding path program 1 times [2022-11-20 10:33:30,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:30,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682693772] [2022-11-20 10:33:30,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:30,980 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 10:33:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:30,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:30,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:33,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:33:33,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:33:33,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:33,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:33,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682693772] [2022-11-20 10:33:33,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682693772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:33,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:33,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:33:33,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274163103] [2022-11-20 10:33:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:33,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:33:33,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:33,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:33:33,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:33:33,134 INFO L87 Difference]: Start difference. First operand has 2413 states, 1622 states have (on average 1.3255240443896423) internal successors, (2150), 1660 states have internal predecessors, (2150), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 10:33:33,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:33,389 INFO L93 Difference]: Finished difference Result 4821 states and 7170 transitions. [2022-11-20 10:33:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:33:33,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-11-20 10:33:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:33,431 INFO L225 Difference]: With dead ends: 4821 [2022-11-20 10:33:33,431 INFO L226 Difference]: Without dead ends: 2396 [2022-11-20 10:33:33,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 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 10:33:33,465 INFO L413 NwaCegarLoop]: 3468 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, 3468 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 10:33:33,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3468 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:33:33,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2022-11-20 10:33:33,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2022-11-20 10:33:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 1613 states have (on average 1.3211407315561066) internal successors, (2131), 1643 states have internal predecessors, (2131), 658 states have call successors, (658), 125 states have call predecessors, (658), 124 states have return successors, (657), 653 states have call predecessors, (657), 657 states have call successors, (657) [2022-11-20 10:33:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3446 transitions. [2022-11-20 10:33:33,677 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3446 transitions. Word has length 105 [2022-11-20 10:33:33,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:33,679 INFO L495 AbstractCegarLoop]: Abstraction has 2396 states and 3446 transitions. [2022-11-20 10:33:33,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 10:33:33,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3446 transitions. [2022-11-20 10:33:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 10:33:33,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:33,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-20 10:33:33,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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)] Ended with exit code 0 [2022-11-20 10:33:33,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:33,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:33,911 INFO L85 PathProgramCache]: Analyzing trace with hash -783091612, now seen corresponding path program 1 times [2022-11-20 10:33:33,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:33,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42398970] [2022-11-20 10:33:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:33,914 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 10:33:33,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:33,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:33,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:35,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:36,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:33:36,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:36,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:36,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42398970] [2022-11-20 10:33:36,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42398970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:36,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:36,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:36,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595146817] [2022-11-20 10:33:36,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:36,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:36,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:36,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:36,243 INFO L87 Difference]: Start difference. First operand 2396 states and 3446 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 10:33:36,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:36,900 INFO L93 Difference]: Finished difference Result 6495 states and 9310 transitions. [2022-11-20 10:33:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:36,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-11-20 10:33:36,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:36,926 INFO L225 Difference]: With dead ends: 6495 [2022-11-20 10:33:36,927 INFO L226 Difference]: Without dead ends: 4107 [2022-11-20 10:33:36,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 10:33:36,940 INFO L413 NwaCegarLoop]: 4607 mSDtfsCounter, 2427 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 8032 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:36,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 8032 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:33:36,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4107 states. [2022-11-20 10:33:37,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4107 to 4103. [2022-11-20 10:33:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 2757 states have (on average 1.3188248095756256) internal successors, (3636), 2809 states have internal predecessors, (3636), 1117 states have call successors, (1117), 229 states have call predecessors, (1117), 228 states have return successors, (1116), 1108 states have call predecessors, (1116), 1116 states have call successors, (1116) [2022-11-20 10:33:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 5869 transitions. [2022-11-20 10:33:37,212 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 5869 transitions. Word has length 105 [2022-11-20 10:33:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:37,212 INFO L495 AbstractCegarLoop]: Abstraction has 4103 states and 5869 transitions. [2022-11-20 10:33:37,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 10:33:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 5869 transitions. [2022-11-20 10:33:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 10:33:37,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:37,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:37,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:37,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:37,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:37,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:37,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1839439927, now seen corresponding path program 1 times [2022-11-20 10:33:37,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:37,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30503684] [2022-11-20 10:33:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:37,454 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 10:33:37,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:37,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:37,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:40,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 2921 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:40,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:33:40,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:40,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:40,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30503684] [2022-11-20 10:33:40,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30503684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:40,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:40,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:40,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803978979] [2022-11-20 10:33:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:40,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:40,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:40,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:40,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:40,754 INFO L87 Difference]: Start difference. First operand 4103 states and 5869 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 10:33:42,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:42,091 INFO L93 Difference]: Finished difference Result 10780 states and 15370 transitions. [2022-11-20 10:33:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:42,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-20 10:33:42,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:42,149 INFO L225 Difference]: With dead ends: 10780 [2022-11-20 10:33:42,149 INFO L226 Difference]: Without dead ends: 6685 [2022-11-20 10:33:42,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:42,176 INFO L413 NwaCegarLoop]: 5215 mSDtfsCounter, 2987 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 8589 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:42,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2987 Valid, 8589 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:33:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6685 states. [2022-11-20 10:33:42,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6685 to 6682. [2022-11-20 10:33:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 4476 states have (on average 1.311662198391421) internal successors, (5871), 4563 states have internal predecessors, (5871), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1805 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-11-20 10:33:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 9506 transitions. [2022-11-20 10:33:42,596 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 9506 transitions. Word has length 99 [2022-11-20 10:33:42,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:42,597 INFO L495 AbstractCegarLoop]: Abstraction has 6682 states and 9506 transitions. [2022-11-20 10:33:42,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 10:33:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 9506 transitions. [2022-11-20 10:33:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 10:33:42,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:42,615 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:42,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:42,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:42,834 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1349672368, now seen corresponding path program 1 times [2022-11-20 10:33:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:42,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485311147] [2022-11-20 10:33:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:42,836 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 10:33:42,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:42,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:42,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:44,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:44,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 10:33:44,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:44,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485311147] [2022-11-20 10:33:44,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485311147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:44,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:44,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:44,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062669614] [2022-11-20 10:33:44,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:44,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:44,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:44,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:44,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:44,750 INFO L87 Difference]: Start difference. First operand 6682 states and 9506 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:33:45,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:45,291 INFO L93 Difference]: Finished difference Result 13351 states and 18997 transitions. [2022-11-20 10:33:45,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:45,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2022-11-20 10:33:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:45,341 INFO L225 Difference]: With dead ends: 13351 [2022-11-20 10:33:45,342 INFO L226 Difference]: Without dead ends: 6680 [2022-11-20 10:33:45,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 10:33:45,384 INFO L413 NwaCegarLoop]: 3446 mSDtfsCounter, 0 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6887 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:45,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6887 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:33:45,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2022-11-20 10:33:45,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6673. [2022-11-20 10:33:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6673 states, 4467 states have (on average 1.3113946720394) internal successors, (5858), 4555 states have internal predecessors, (5858), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1804 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-11-20 10:33:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 9493 transitions. [2022-11-20 10:33:45,778 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 9493 transitions. Word has length 138 [2022-11-20 10:33:45,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:45,779 INFO L495 AbstractCegarLoop]: Abstraction has 6673 states and 9493 transitions. [2022-11-20 10:33:45,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:33:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 9493 transitions. [2022-11-20 10:33:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-20 10:33:45,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:45,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:45,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:46,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:46,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:46,014 INFO L85 PathProgramCache]: Analyzing trace with hash -220053183, now seen corresponding path program 1 times [2022-11-20 10:33:46,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:46,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84591221] [2022-11-20 10:33:46,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:46,017 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 10:33:46,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:46,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:46,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:49,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:49,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:33:49,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:49,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:49,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84591221] [2022-11-20 10:33:49,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84591221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:49,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:49,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718727298] [2022-11-20 10:33:49,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:49,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:49,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:49,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:49,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:49,288 INFO L87 Difference]: Start difference. First operand 6673 states and 9493 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:33:49,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:49,676 INFO L93 Difference]: Finished difference Result 13959 states and 19994 transitions. [2022-11-20 10:33:49,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:49,678 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-11-20 10:33:49,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:49,751 INFO L225 Difference]: With dead ends: 13959 [2022-11-20 10:33:49,751 INFO L226 Difference]: Without dead ends: 7301 [2022-11-20 10:33:49,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:49,787 INFO L413 NwaCegarLoop]: 3717 mSDtfsCounter, 332 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:49,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 7165 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:33:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-11-20 10:33:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 6675. [2022-11-20 10:33:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 4469 states have (on average 1.3112553143880064) internal successors, (5860), 4557 states have internal predecessors, (5860), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1804 states have call predecessors, (1817), 1817 states have call successors, (1817) [2022-11-20 10:33:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9495 transitions. [2022-11-20 10:33:50,165 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9495 transitions. Word has length 130 [2022-11-20 10:33:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:50,166 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9495 transitions. [2022-11-20 10:33:50,166 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:33:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9495 transitions. [2022-11-20 10:33:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-20 10:33:50,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:50,177 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:50,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:50,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:50,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:50,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:50,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1714602902, now seen corresponding path program 1 times [2022-11-20 10:33:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:50,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893440488] [2022-11-20 10:33:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:50,394 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 10:33:50,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:50,395 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:50,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:53,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 3001 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:33:53,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:33:54,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:54,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:54,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893440488] [2022-11-20 10:33:54,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893440488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:54,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:54,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:33:54,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810807148] [2022-11-20 10:33:54,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:54,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:33:54,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:54,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:33:54,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:33:54,167 INFO L87 Difference]: Start difference. First operand 6675 states and 9495 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 10:33:54,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:54,740 INFO L93 Difference]: Finished difference Result 13326 states and 18962 transitions. [2022-11-20 10:33:54,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:33:54,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-11-20 10:33:54,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:54,781 INFO L225 Difference]: With dead ends: 13326 [2022-11-20 10:33:54,782 INFO L226 Difference]: Without dead ends: 6662 [2022-11-20 10:33:54,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:33:54,808 INFO L413 NwaCegarLoop]: 3444 mSDtfsCounter, 1 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10326 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:54,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10326 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:33:54,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-11-20 10:33:55,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 6654. [2022-11-20 10:33:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6654 states, 4452 states have (on average 1.3110961365678346) internal successors, (5837), 4540 states have internal predecessors, (5837), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1801 states have call predecessors, (1814), 1814 states have call successors, (1814) [2022-11-20 10:33:55,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6654 states to 6654 states and 9466 transitions. [2022-11-20 10:33:55,230 INFO L78 Accepts]: Start accepts. Automaton has 6654 states and 9466 transitions. Word has length 131 [2022-11-20 10:33:55,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:55,231 INFO L495 AbstractCegarLoop]: Abstraction has 6654 states and 9466 transitions. [2022-11-20 10:33:55,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 10:33:55,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6654 states and 9466 transitions. [2022-11-20 10:33:55,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 10:33:55,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:55,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:55,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:55,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:55,458 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:55,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2142611794, now seen corresponding path program 1 times [2022-11-20 10:33:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:55,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025080453] [2022-11-20 10:33:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:55,461 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 10:33:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:55,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:55,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:33:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:57,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 2109 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:57,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 10:33:58,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:58,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:58,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025080453] [2022-11-20 10:33:58,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025080453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:58,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:58,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:58,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330224199] [2022-11-20 10:33:58,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:58,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:58,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:58,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:58,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:58,483 INFO L87 Difference]: Start difference. First operand 6654 states and 9466 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:33:59,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:59,262 INFO L93 Difference]: Finished difference Result 16364 states and 23229 transitions. [2022-11-20 10:33:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:59,263 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), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 155 [2022-11-20 10:33:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:59,312 INFO L225 Difference]: With dead ends: 16364 [2022-11-20 10:33:59,312 INFO L226 Difference]: Without dead ends: 9725 [2022-11-20 10:33:59,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:59,336 INFO L413 NwaCegarLoop]: 5112 mSDtfsCounter, 3390 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 7750 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:59,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 7750 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:33:59,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9725 states. [2022-11-20 10:33:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9725 to 9714. [2022-11-20 10:33:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9714 states, 6485 states have (on average 1.3065535851966075) internal successors, (8473), 6615 states have internal predecessors, (8473), 2644 states have call successors, (2644), 585 states have call predecessors, (2644), 584 states have return successors, (2643), 2626 states have call predecessors, (2643), 2643 states have call successors, (2643) [2022-11-20 10:33:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9714 states to 9714 states and 13760 transitions. [2022-11-20 10:33:59,883 INFO L78 Accepts]: Start accepts. Automaton has 9714 states and 13760 transitions. Word has length 155 [2022-11-20 10:33:59,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:59,884 INFO L495 AbstractCegarLoop]: Abstraction has 9714 states and 13760 transitions. [2022-11-20 10:33:59,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:33:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 9714 states and 13760 transitions. [2022-11-20 10:33:59,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 10:33:59,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:59,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:59,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:00,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:00,178 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:00,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:00,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2130108904, now seen corresponding path program 1 times [2022-11-20 10:34:00,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:00,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724006559] [2022-11-20 10:34:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:00,181 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 10:34:00,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:00,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:00,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:03,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:03,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:04,059 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 10:34:04,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:04,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:04,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724006559] [2022-11-20 10:34:04,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724006559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:04,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:04,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:04,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801042404] [2022-11-20 10:34:04,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:04,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:04,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:04,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:04,063 INFO L87 Difference]: Start difference. First operand 9714 states and 13760 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 10:34:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:05,579 INFO L93 Difference]: Finished difference Result 23325 states and 33051 transitions. [2022-11-20 10:34:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:05,580 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), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 150 [2022-11-20 10:34:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:05,657 INFO L225 Difference]: With dead ends: 23325 [2022-11-20 10:34:05,658 INFO L226 Difference]: Without dead ends: 13626 [2022-11-20 10:34:05,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:05,697 INFO L413 NwaCegarLoop]: 5619 mSDtfsCounter, 3025 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3025 SdHoareTripleChecker+Valid, 8991 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:05,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3025 Valid, 8991 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:34:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13626 states. [2022-11-20 10:34:06,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13626 to 13618. [2022-11-20 10:34:06,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13618 states, 9116 states have (on average 1.304848617814831) internal successors, (11895), 9298 states have internal predecessors, (11895), 3672 states have call successors, (3672), 830 states have call predecessors, (3672), 829 states have return successors, (3671), 3649 states have call predecessors, (3671), 3671 states have call successors, (3671) [2022-11-20 10:34:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 19238 transitions. [2022-11-20 10:34:06,595 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 19238 transitions. Word has length 150 [2022-11-20 10:34:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:06,596 INFO L495 AbstractCegarLoop]: Abstraction has 13618 states and 19238 transitions. [2022-11-20 10:34:06,597 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), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 10:34:06,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 19238 transitions. [2022-11-20 10:34:06,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 10:34:06,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:06,612 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-20 10:34:06,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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)] Ended with exit code 0 [2022-11-20 10:34:06,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:06,826 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:06,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:06,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1274211818, now seen corresponding path program 1 times [2022-11-20 10:34:06,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:06,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426435122] [2022-11-20 10:34:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:06,829 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 10:34:06,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:06,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:06,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:08,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:08,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:34:08,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:08,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426435122] [2022-11-20 10:34:08,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426435122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:08,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:08,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:08,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772427534] [2022-11-20 10:34:08,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:08,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:08,993 INFO L87 Difference]: Start difference. First operand 13618 states and 19238 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:10,219 INFO L93 Difference]: Finished difference Result 40792 states and 58102 transitions. [2022-11-20 10:34:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:10,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2022-11-20 10:34:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:10,473 INFO L225 Difference]: With dead ends: 40792 [2022-11-20 10:34:10,474 INFO L226 Difference]: Without dead ends: 27189 [2022-11-20 10:34:10,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:10,531 INFO L413 NwaCegarLoop]: 4122 mSDtfsCounter, 3421 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 7584 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:10,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 7584 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:34:10,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27189 states. [2022-11-20 10:34:12,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27189 to 27186. [2022-11-20 10:34:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27186 states, 18204 states have (on average 1.3039441880905296) internal successors, (23737), 18568 states have internal predecessors, (23737), 7324 states have call successors, (7324), 1658 states have call predecessors, (7324), 1657 states have return successors, (7558), 7279 states have call predecessors, (7558), 7323 states have call successors, (7558) [2022-11-20 10:34:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27186 states to 27186 states and 38619 transitions. [2022-11-20 10:34:12,483 INFO L78 Accepts]: Start accepts. Automaton has 27186 states and 38619 transitions. Word has length 153 [2022-11-20 10:34:12,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:12,483 INFO L495 AbstractCegarLoop]: Abstraction has 27186 states and 38619 transitions. [2022-11-20 10:34:12,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:12,484 INFO L276 IsEmpty]: Start isEmpty. Operand 27186 states and 38619 transitions. [2022-11-20 10:34:12,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 10:34:12,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:12,498 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-20 10:34:12,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:12,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:12,714 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:12,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash -624582741, now seen corresponding path program 1 times [2022-11-20 10:34:12,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:12,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145115163] [2022-11-20 10:34:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:12,716 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 10:34:12,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:12,723 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:12,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:14,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:14,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:34:15,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:15,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145115163] [2022-11-20 10:34:15,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145115163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:15,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:15,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:15,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434501355] [2022-11-20 10:34:15,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:15,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:15,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:15,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:15,159 INFO L87 Difference]: Start difference. First operand 27186 states and 38619 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:17,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:17,591 INFO L93 Difference]: Finished difference Result 67887 states and 97052 transitions. [2022-11-20 10:34:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:17,592 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-11-20 10:34:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:17,944 INFO L225 Difference]: With dead ends: 67887 [2022-11-20 10:34:17,944 INFO L226 Difference]: Without dead ends: 40716 [2022-11-20 10:34:18,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:18,055 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 3412 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 7560 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:18,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 7560 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:34:18,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40716 states. [2022-11-20 10:34:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40716 to 40713. [2022-11-20 10:34:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40713 states, 27267 states have (on average 1.3030036307624602) internal successors, (35529), 27813 states have internal predecessors, (35529), 10960 states have call successors, (10960), 2486 states have call predecessors, (10960), 2485 states have return successors, (11598), 10893 states have call predecessors, (11598), 10959 states have call successors, (11598) [2022-11-20 10:34:21,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40713 states to 40713 states and 58087 transitions. [2022-11-20 10:34:21,029 INFO L78 Accepts]: Start accepts. Automaton has 40713 states and 58087 transitions. Word has length 152 [2022-11-20 10:34:21,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:21,030 INFO L495 AbstractCegarLoop]: Abstraction has 40713 states and 58087 transitions. [2022-11-20 10:34:21,030 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 40713 states and 58087 transitions. [2022-11-20 10:34:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-20 10:34:21,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:21,044 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-20 10:34:21,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:21,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:21,266 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash -321975775, now seen corresponding path program 1 times [2022-11-20 10:34:21,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:21,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2998744] [2022-11-20 10:34:21,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:21,268 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 10:34:21,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:21,271 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:21,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:23,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1977 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:23,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:34:23,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:23,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:23,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2998744] [2022-11-20 10:34:23,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2998744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:23,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:23,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:23,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450773981] [2022-11-20 10:34:23,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:23,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:23,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:23,624 INFO L87 Difference]: Start difference. First operand 40713 states and 58087 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:26,913 INFO L93 Difference]: Finished difference Result 94900 states and 136196 transitions. [2022-11-20 10:34:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:26,914 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-11-20 10:34:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:27,317 INFO L225 Difference]: With dead ends: 94900 [2022-11-20 10:34:27,318 INFO L226 Difference]: Without dead ends: 54202 [2022-11-20 10:34:27,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:27,722 INFO L413 NwaCegarLoop]: 4143 mSDtfsCounter, 3403 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3403 SdHoareTripleChecker+Valid, 7601 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:27,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3403 Valid, 7601 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:34:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54202 states. [2022-11-20 10:34:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54202 to 54199. [2022-11-20 10:34:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54199 states, 36305 states have (on average 1.3020520589450488) internal successors, (47271), 37033 states have internal predecessors, (47271), 14580 states have call successors, (14580), 3314 states have call predecessors, (14580), 3313 states have return successors, (15759), 14491 states have call predecessors, (15759), 14579 states have call successors, (15759) [2022-11-20 10:34:31,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54199 states to 54199 states and 77610 transitions. [2022-11-20 10:34:31,166 INFO L78 Accepts]: Start accepts. Automaton has 54199 states and 77610 transitions. Word has length 151 [2022-11-20 10:34:31,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:31,167 INFO L495 AbstractCegarLoop]: Abstraction has 54199 states and 77610 transitions. [2022-11-20 10:34:31,167 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:31,167 INFO L276 IsEmpty]: Start isEmpty. Operand 54199 states and 77610 transitions. [2022-11-20 10:34:31,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 10:34:31,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:31,179 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-20 10:34:31,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:31,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:31,394 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:31,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1472376510, now seen corresponding path program 1 times [2022-11-20 10:34:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:31,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82664778] [2022-11-20 10:34:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:31,396 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 10:34:31,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:31,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:31,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:33,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1975 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:33,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 10:34:33,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:33,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:33,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82664778] [2022-11-20 10:34:33,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82664778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:33,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:33,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:33,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775212027] [2022-11-20 10:34:33,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:33,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:33,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:33,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:33,572 INFO L87 Difference]: Start difference. First operand 54199 states and 77610 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:37,806 INFO L93 Difference]: Finished difference Result 119834 states and 172112 transitions. [2022-11-20 10:34:37,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:37,810 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2022-11-20 10:34:37,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:38,161 INFO L225 Difference]: With dead ends: 119834 [2022-11-20 10:34:38,162 INFO L226 Difference]: Without dead ends: 65650 [2022-11-20 10:34:38,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:38,409 INFO L413 NwaCegarLoop]: 4126 mSDtfsCounter, 3162 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 7565 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:38,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 7565 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:34:38,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65650 states. [2022-11-20 10:34:42,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65650 to 65647. [2022-11-20 10:34:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65647 states, 43984 states have (on average 1.3027691887959258) internal successors, (57301), 44867 states have internal predecessors, (57301), 17658 states have call successors, (17658), 4040 states have call predecessors, (17658), 4004 states have return successors, (19071), 17500 states have call predecessors, (19071), 17657 states have call successors, (19071) [2022-11-20 10:34:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65647 states to 65647 states and 94030 transitions. [2022-11-20 10:34:42,622 INFO L78 Accepts]: Start accepts. Automaton has 65647 states and 94030 transitions. Word has length 150 [2022-11-20 10:34:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:42,622 INFO L495 AbstractCegarLoop]: Abstraction has 65647 states and 94030 transitions. [2022-11-20 10:34:42,622 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, (27), 2 states have call predecessors, (27), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 10:34:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 65647 states and 94030 transitions. [2022-11-20 10:34:42,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-20 10:34:42,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:42,635 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:42,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:42,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:42,858 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1916692273, now seen corresponding path program 1 times [2022-11-20 10:34:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:42,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584316818] [2022-11-20 10:34:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:42,860 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 10:34:42,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:42,861 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:42,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99581617-6ed9-4aef-be2a-9be820bd9f5c/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 10:34:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2163 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:34:45,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-20 10:34:45,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:45,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:45,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584316818] [2022-11-20 10:34:45,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584316818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:45,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:45,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:34:45,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021617785] [2022-11-20 10:34:45,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:45,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:34:45,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:34:45,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:34:45,320 INFO L87 Difference]: Start difference. First operand 65647 states and 94030 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)