./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.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_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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_057d14fa-798f-4fb7-a669-c7b947d56546/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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- 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 10:53:21,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:53:21,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:53:21,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:53:21,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:53:21,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:53:21,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:53:21,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:53:21,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:53:21,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:53:21,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:53:21,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:53:21,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:53:21,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:53:21,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:53:21,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:53:21,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:53:21,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:53:21,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:53:21,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:53:21,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:53:21,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:53:21,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:53:21,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:53:21,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:53:21,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:53:21,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:53:21,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:53:21,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:53:21,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:53:21,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:53:21,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:53:21,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:53:21,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:53:21,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:53:21,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:53:21,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:53:21,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:53:21,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:53:21,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:53:21,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:53:21,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:53:21,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:53:21,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:53:21,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:53:21,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:53:21,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:53:21,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:53:21,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:53:21,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:53:21,495 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:53:21,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:53:21,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:53:21,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:53:21,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:53:21,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:53:21,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:53:21,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:53:21,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:53:21,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:53:21,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:53:21,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:53:21,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:53:21,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:53:21,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:53:21,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:53:21,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:53:21,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:53:21,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:53:21,500 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:53:21,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:53:21,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:53:21,501 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_057d14fa-798f-4fb7-a669-c7b947d56546/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-11-20 10:53:21,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:53:21,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:53:21,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:53:21,898 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:53:21,899 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:53:21,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-20 10:53:25,264 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:53:25,988 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:53:25,989 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-20 10:53:26,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data/0d1da65e9/2c30cf3c5b39498e93a1ca1f645428fb/FLAG02e249696 [2022-11-20 10:53:26,061 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data/0d1da65e9/2c30cf3c5b39498e93a1ca1f645428fb [2022-11-20 10:53:26,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:53:26,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:53:26,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:53:26,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:53:26,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:53:26,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:53:26" (1/1) ... [2022-11-20 10:53:26,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c9e3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:26, skipping insertion in model container [2022-11-20 10:53:26,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:53:26" (1/1) ... [2022-11-20 10:53:26,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:53:26,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:53:26,993 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:53:27,016 INFO L158 Benchmark]: Toolchain (without parser) took 945.57ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 126.2MB in the end (delta: 8.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-11-20 10:53:27,017 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:53:27,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 940.83ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 126.2MB in the end (delta: 8.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-11-20 10:53:27,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 940.83ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 126.2MB in the end (delta: 8.0MB). Peak memory consumption was 38.4MB. 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_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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_057d14fa-798f-4fb7-a669-c7b947d56546/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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- 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 10:53:29,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:53:29,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:53:29,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:53:29,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:53:29,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:53:29,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:53:29,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:53:29,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:53:29,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:53:29,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:53:29,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:53:29,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:53:29,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:53:29,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:53:29,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:53:29,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:53:29,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:53:29,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:53:29,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:53:29,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:53:29,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:53:29,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:53:29,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:53:29,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:53:29,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:53:29,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:53:29,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:53:29,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:53:29,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:53:29,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:53:29,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:53:29,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:53:29,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:53:29,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:53:29,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:53:29,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:53:29,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:53:29,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:53:29,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:53:29,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:53:29,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:53:29,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:53:29,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:53:29,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:53:29,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:53:29,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:53:29,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:53:29,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:53:29,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:53:29,965 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:53:29,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:53:29,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:53:29,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:53:29,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:53:29,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:53:29,966 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:53:29,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:53:29,968 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:53:29,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:53:29,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:53:29,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:53:29,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:53:29,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:53:29,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:53:29,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:53:29,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:53:29,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:53:29,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:53:29,972 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:53:29,973 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:53:29,973 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:53:29,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:53:29,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:53:29,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:53:29,974 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_057d14fa-798f-4fb7-a669-c7b947d56546/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-11-20 10:53:30,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:53:30,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:53:30,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:53:30,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:53:30,424 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:53:30,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-20 10:53:33,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:53:34,307 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:53:34,308 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-20 10:53:34,366 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data/f43c05bf3/661870152f6946c4b962a3807dbdb22b/FLAGcdcb43bda [2022-11-20 10:53:34,400 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/data/f43c05bf3/661870152f6946c4b962a3807dbdb22b [2022-11-20 10:53:34,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:53:34,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:53:34,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:53:34,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:53:34,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:53:34,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:53:34" (1/1) ... [2022-11-20 10:53:34,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651622bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:34, skipping insertion in model container [2022-11-20 10:53:34,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:53:34" (1/1) ... [2022-11-20 10:53:34,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:53:34,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:53:37,271 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_057d14fa-798f-4fb7-a669-c7b947d56546/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-11-20 10:53:37,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:53:37,439 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:53:37,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:53:37,909 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_057d14fa-798f-4fb7-a669-c7b947d56546/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-11-20 10:53:37,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:53:38,029 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:53:38,529 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_057d14fa-798f-4fb7-a669-c7b947d56546/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-11-20 10:53:38,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:53:38,780 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:53:38,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38 WrapperNode [2022-11-20 10:53:38,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:53:38,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:53:38,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:53:38,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:53:38,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:38,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,172 INFO L138 Inliner]: procedures = 283, calls = 1595, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4110 [2022-11-20 10:53:39,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:53:39,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:53:39,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:53:39,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:53:39,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:53:39,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:53:39,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:53:39,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:53:39,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (1/1) ... [2022-11-20 10:53:39,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:53:39,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:53:39,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:53:39,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:53:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-11-20 10:53:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-11-20 10:53:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:53:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:53:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 10:53:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 10:53:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2022-11-20 10:53:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2022-11-20 10:53:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:53:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:53:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:53:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:53:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:53:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:53:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:53:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:53:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 10:53:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 10:53:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:53:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:53:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 10:53:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 10:53:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 10:53:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 10:53:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:53:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:53:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-11-20 10:53:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-11-20 10:53:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:53:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:53:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 10:53:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 10:53:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 10:53:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 10:53:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:53:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:53:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 10:53:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 10:53:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-11-20 10:53:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-11-20 10:53:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 10:53:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 10:53:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:53:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:53:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 10:53:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 10:53:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:53:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:53:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 10:53:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 10:53:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 10:53:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 10:53:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-11-20 10:53:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-11-20 10:53:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:53:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:53:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-20 10:53:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-20 10:53:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 10:53:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 10:53:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:53:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 10:53:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 10:53:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-20 10:53:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-20 10:53:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:53:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 10:53:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 10:53:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 10:53:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 10:53:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:53:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:53:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 10:53:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 10:53:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:53:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:53:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 10:53:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 10:53:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-11-20 10:53:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-11-20 10:53:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-11-20 10:53:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-11-20 10:53:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:53:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:53:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-11-20 10:53:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-11-20 10:53:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-11-20 10:53:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-11-20 10:53:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 10:53:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 10:53:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:53:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:53:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:53:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:53:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:53:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:53:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:53:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:53:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:53:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-20 10:53:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-20 10:53:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:53:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-20 10:53:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-20 10:53:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:53:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:53:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-11-20 10:53:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-11-20 10:53:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:53:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:53:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-11-20 10:53:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-11-20 10:53:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 10:53:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 10:53:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:53:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:53:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 10:53:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 10:53:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-11-20 10:53:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-11-20 10:53:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-11-20 10:53:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-11-20 10:53:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 10:53:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 10:53:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:53:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:53:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:53:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:53:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 10:53:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 10:53:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:53:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:53:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:53:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:53:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:53:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:53:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-11-20 10:53:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-11-20 10:53:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 10:53:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 10:53:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-20 10:53:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-20 10:53:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-20 10:53:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-20 10:53:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-11-20 10:53:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-11-20 10:53:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:53:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:53:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-11-20 10:53:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-11-20 10:53:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:53:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:53:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-11-20 10:53:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-11-20 10:53:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:53:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-20 10:53:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-20 10:53:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:53:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:53:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-20 10:53:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-20 10:53:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:53:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-11-20 10:53:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-11-20 10:53:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:53:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 10:53:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 10:53:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 10:53:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 10:53:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-20 10:53:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-20 10:53:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-20 10:53:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-20 10:53:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2022-11-20 10:53:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2022-11-20 10:53:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-11-20 10:53:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-11-20 10:53:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 10:53:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 10:53:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-11-20 10:53:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-11-20 10:53:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 10:53:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 10:53:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 10:53:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 10:53:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:53:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:53:40,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:53:40,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:53:41,193 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:54:15,071 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:54:15,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:54:15,090 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:54:15,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:15 BoogieIcfgContainer [2022-11-20 10:54:15,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:54:15,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:54:15,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:54:15,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:54:15,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:53:34" (1/3) ... [2022-11-20 10:54:15,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9734da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:54:15, skipping insertion in model container [2022-11-20 10:54:15,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:53:38" (2/3) ... [2022-11-20 10:54:15,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9734da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:54:15, skipping insertion in model container [2022-11-20 10:54:15,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:54:15" (3/3) ... [2022-11-20 10:54:15,105 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-11-20 10:54:15,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:54:15,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:54:15,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:54:15,246 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;@474c66d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:54:15,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:54:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 1673 states, 1143 states have (on average 1.3193350831146107) internal successors, (1508), 1167 states have internal predecessors, (1508), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2022-11-20 10:54:15,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 10:54:15,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:15,301 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-20 10:54:15,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash 5120945, now seen corresponding path program 1 times [2022-11-20 10:54:15,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:15,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903528814] [2022-11-20 10:54:15,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:15,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:15,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:15,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:15,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:17,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:54:17,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-20 10:54:17,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:17,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:17,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903528814] [2022-11-20 10:54:17,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903528814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:17,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:17,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:54:17,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581019415] [2022-11-20 10:54:17,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:17,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:54:17,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:17,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:54:17,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:54:17,259 INFO L87 Difference]: Start difference. First operand has 1673 states, 1143 states have (on average 1.3193350831146107) internal successors, (1508), 1167 states have internal predecessors, (1508), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:17,438 INFO L93 Difference]: Finished difference Result 3341 states and 4829 transitions. [2022-11-20 10:54:17,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:54:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2022-11-20 10:54:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:17,468 INFO L225 Difference]: With dead ends: 3341 [2022-11-20 10:54:17,468 INFO L226 Difference]: Without dead ends: 1653 [2022-11-20 10:54:17,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 177 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 10:54:17,486 INFO L413 NwaCegarLoop]: 2387 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, 2387 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 10:54:17,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:54:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-11-20 10:54:17,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1653. [2022-11-20 10:54:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1132 states have (on average 1.3091872791519434) internal successors, (1482), 1147 states have internal predecessors, (1482), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-11-20 10:54:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2359 transitions. [2022-11-20 10:54:17,661 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2359 transitions. Word has length 178 [2022-11-20 10:54:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:17,662 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 2359 transitions. [2022-11-20 10:54:17,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2359 transitions. [2022-11-20 10:54:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 10:54:17,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:17,680 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-20 10:54:17,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:17,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:17,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1836054205, now seen corresponding path program 1 times [2022-11-20 10:54:17,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:17,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125500633] [2022-11-20 10:54:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:17,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:17,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:17,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:17,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:19,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:54:19,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-11-20 10:54:19,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:19,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:19,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125500633] [2022-11-20 10:54:19,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125500633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:19,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:19,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:54:19,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288299200] [2022-11-20 10:54:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:19,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:54:19,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:19,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:54:19,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:54:19,786 INFO L87 Difference]: Start difference. First operand 1653 states and 2359 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:20,017 INFO L93 Difference]: Finished difference Result 3294 states and 4703 transitions. [2022-11-20 10:54:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:54:20,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2022-11-20 10:54:20,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:20,030 INFO L225 Difference]: With dead ends: 3294 [2022-11-20 10:54:20,030 INFO L226 Difference]: Without dead ends: 1654 [2022-11-20 10:54:20,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:54:20,040 INFO L413 NwaCegarLoop]: 2357 mSDtfsCounter, 3 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7062 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:20,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7062 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:54:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-11-20 10:54:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-11-20 10:54:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1133 states have (on average 1.3089143865842896) internal successors, (1483), 1148 states have internal predecessors, (1483), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-11-20 10:54:20,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2360 transitions. [2022-11-20 10:54:20,228 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2360 transitions. Word has length 178 [2022-11-20 10:54:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:20,230 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2360 transitions. [2022-11-20 10:54:20,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:20,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2360 transitions. [2022-11-20 10:54:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 10:54:20,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:20,241 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 10:54:20,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:20,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:20,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:20,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1652925895, now seen corresponding path program 1 times [2022-11-20 10:54:20,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:20,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995547520] [2022-11-20 10:54:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:20,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:20,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:20,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:22,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:54:22,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-20 10:54:22,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:54:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 10:54:22,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:22,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995547520] [2022-11-20 10:54:22,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995547520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:54:22,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:54:22,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 10:54:22,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284228511] [2022-11-20 10:54:22,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:54:22,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:54:22,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:54:22,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:54:22,752 INFO L87 Difference]: Start difference. First operand 1654 states and 2360 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:54:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:23,286 INFO L93 Difference]: Finished difference Result 3301 states and 4715 transitions. [2022-11-20 10:54:23,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:54:23,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 182 [2022-11-20 10:54:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:23,299 INFO L225 Difference]: With dead ends: 3301 [2022-11-20 10:54:23,299 INFO L226 Difference]: Without dead ends: 1657 [2022-11-20 10:54:23,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:54:23,310 INFO L413 NwaCegarLoop]: 2357 mSDtfsCounter, 16 mSDsluCounter, 7063 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9420 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:23,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9420 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:54:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-11-20 10:54:23,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2022-11-20 10:54:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1136 states have (on average 1.3080985915492958) internal successors, (1486), 1151 states have internal predecessors, (1486), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-11-20 10:54:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2363 transitions. [2022-11-20 10:54:23,396 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2363 transitions. Word has length 182 [2022-11-20 10:54:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:23,397 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2363 transitions. [2022-11-20 10:54:23,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:54:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2363 transitions. [2022-11-20 10:54:23,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-20 10:54:23,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:23,404 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-20 10:54:23,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:23,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:23,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:23,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:23,620 INFO L85 PathProgramCache]: Analyzing trace with hash -497720387, now seen corresponding path program 2 times [2022-11-20 10:54:23,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:23,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554045997] [2022-11-20 10:54:23,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:54:23,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:23,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:23,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:23,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:24,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:54:24,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:54:24,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:54:24,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:54:25,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:25,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:25,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554045997] [2022-11-20 10:54:25,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554045997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:25,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:25,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:54:25,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094391237] [2022-11-20 10:54:25,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:25,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:54:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:25,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:54:25,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:54:25,729 INFO L87 Difference]: Start difference. First operand 1657 states and 2363 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:26,151 INFO L93 Difference]: Finished difference Result 4914 states and 7015 transitions. [2022-11-20 10:54:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:54:26,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 194 [2022-11-20 10:54:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:26,183 INFO L225 Difference]: With dead ends: 4914 [2022-11-20 10:54:26,183 INFO L226 Difference]: Without dead ends: 3289 [2022-11-20 10:54:26,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:54:26,198 INFO L413 NwaCegarLoop]: 2795 mSDtfsCounter, 2305 mSDsluCounter, 7895 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 10690 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:26,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 10690 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:54:26,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2022-11-20 10:54:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3276. [2022-11-20 10:54:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 2246 states have (on average 1.3089937666963491) internal successors, (2940), 2280 states have internal predecessors, (2940), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2022-11-20 10:54:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 4673 transitions. [2022-11-20 10:54:26,406 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 4673 transitions. Word has length 194 [2022-11-20 10:54:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:26,408 INFO L495 AbstractCegarLoop]: Abstraction has 3276 states and 4673 transitions. [2022-11-20 10:54:26,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 4673 transitions. [2022-11-20 10:54:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 10:54:26,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:26,421 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-20 10:54:26,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:26,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:26,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:26,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:26,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1629977233, now seen corresponding path program 1 times [2022-11-20 10:54:26,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:26,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481180382] [2022-11-20 10:54:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:26,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:26,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:26,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:26,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:29,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:54:29,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:54:29,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:29,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:29,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481180382] [2022-11-20 10:54:29,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481180382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:29,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:29,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:54:29,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5431704] [2022-11-20 10:54:29,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:29,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:54:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:29,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:54:29,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:54:29,872 INFO L87 Difference]: Start difference. First operand 3276 states and 4673 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:30,494 INFO L93 Difference]: Finished difference Result 9784 states and 13963 transitions. [2022-11-20 10:54:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:54:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 195 [2022-11-20 10:54:30,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:30,548 INFO L225 Difference]: With dead ends: 9784 [2022-11-20 10:54:30,549 INFO L226 Difference]: Without dead ends: 6540 [2022-11-20 10:54:30,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:54:30,574 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 2304 mSDsluCounter, 7909 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 10712 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:30,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 10712 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:54:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6540 states. [2022-11-20 10:54:31,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6540 to 6519. [2022-11-20 10:54:31,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6519 states, 4472 states have (on average 1.3090339892665475) internal successors, (5854), 4539 states have internal predecessors, (5854), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2022-11-20 10:54:31,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 9297 transitions. [2022-11-20 10:54:31,169 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 9297 transitions. Word has length 195 [2022-11-20 10:54:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:31,171 INFO L495 AbstractCegarLoop]: Abstraction has 6519 states and 9297 transitions. [2022-11-20 10:54:31,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 9297 transitions. [2022-11-20 10:54:31,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-20 10:54:31,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:31,185 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-20 10:54:31,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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)] Ended with exit code 0 [2022-11-20 10:54:31,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:31,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:31,412 INFO L85 PathProgramCache]: Analyzing trace with hash 822834304, now seen corresponding path program 1 times [2022-11-20 10:54:31,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:31,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426882740] [2022-11-20 10:54:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:31,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:31,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:31,415 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:31,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:33,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:54:33,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:54:34,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:34,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:34,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426882740] [2022-11-20 10:54:34,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426882740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:34,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:34,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:54:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522566942] [2022-11-20 10:54:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:34,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:54:34,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:34,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:54:34,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:54:34,705 INFO L87 Difference]: Start difference. First operand 6519 states and 9297 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:35,606 INFO L93 Difference]: Finished difference Result 19536 states and 27865 transitions. [2022-11-20 10:54:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:54:35,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-11-20 10:54:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:35,744 INFO L225 Difference]: With dead ends: 19536 [2022-11-20 10:54:35,745 INFO L226 Difference]: Without dead ends: 13049 [2022-11-20 10:54:35,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:54:35,789 INFO L413 NwaCegarLoop]: 2784 mSDtfsCounter, 2305 mSDsluCounter, 7871 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 10655 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:35,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 10655 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:54:35,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13049 states. [2022-11-20 10:54:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13049 to 13010. [2022-11-20 10:54:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13010 states, 8929 states have (on average 1.3087691790794043) internal successors, (11686), 9061 states have internal predecessors, (11686), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2022-11-20 10:54:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13010 states to 13010 states and 18547 transitions. [2022-11-20 10:54:36,927 INFO L78 Accepts]: Start accepts. Automaton has 13010 states and 18547 transitions. Word has length 196 [2022-11-20 10:54:36,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:36,928 INFO L495 AbstractCegarLoop]: Abstraction has 13010 states and 18547 transitions. [2022-11-20 10:54:36,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 13010 states and 18547 transitions. [2022-11-20 10:54:36,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 10:54:36,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:36,943 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-11-20 10:54:36,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:37,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:37,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1551351278, now seen corresponding path program 1 times [2022-11-20 10:54:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:37,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039371293] [2022-11-20 10:54:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:37,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:37,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:37,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:37,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:39,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:54:39,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:54:40,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:40,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:40,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039371293] [2022-11-20 10:54:40,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039371293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:40,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:40,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:54:40,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964755136] [2022-11-20 10:54:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:40,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:54:40,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:40,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:54:40,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:54:40,275 INFO L87 Difference]: Start difference. First operand 13010 states and 18547 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:41,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:41,830 INFO L93 Difference]: Finished difference Result 39040 states and 55653 transitions. [2022-11-20 10:54:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:54:41,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 197 [2022-11-20 10:54:41,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:42,001 INFO L225 Difference]: With dead ends: 39040 [2022-11-20 10:54:42,001 INFO L226 Difference]: Without dead ends: 26062 [2022-11-20 10:54:42,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:54:42,077 INFO L413 NwaCegarLoop]: 2784 mSDtfsCounter, 2306 mSDsluCounter, 7871 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 10655 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:42,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 10655 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:54:42,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26062 states. [2022-11-20 10:54:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26062 to 25990. [2022-11-20 10:54:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25990 states, 17843 states have (on average 1.3083001737376) internal successors, (23344), 18103 states have internal predecessors, (23344), 6846 states have call successors, (6846), 1301 states have call predecessors, (6846), 1300 states have return successors, (6845), 6761 states have call predecessors, (6845), 6845 states have call successors, (6845) [2022-11-20 10:54:44,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25990 states to 25990 states and 37035 transitions. [2022-11-20 10:54:44,230 INFO L78 Accepts]: Start accepts. Automaton has 25990 states and 37035 transitions. Word has length 197 [2022-11-20 10:54:44,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:44,231 INFO L495 AbstractCegarLoop]: Abstraction has 25990 states and 37035 transitions. [2022-11-20 10:54:44,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:54:44,231 INFO L276 IsEmpty]: Start isEmpty. Operand 25990 states and 37035 transitions. [2022-11-20 10:54:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 10:54:44,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:44,244 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:44,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:44,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:44,467 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:44,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:44,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1505397997, now seen corresponding path program 1 times [2022-11-20 10:54:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:44,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447118579] [2022-11-20 10:54:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:44,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:44,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:44,473 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:44,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:46,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:54:46,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-20 10:54:46,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:46,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:46,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447118579] [2022-11-20 10:54:46,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447118579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:46,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:46,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:46,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12575054] [2022-11-20 10:54:46,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:46,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:46,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:46,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:46,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:46,946 INFO L87 Difference]: Start difference. First operand 25990 states and 37035 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 10:54:49,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:49,436 INFO L93 Difference]: Finished difference Result 72138 states and 102373 transitions. [2022-11-20 10:54:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:49,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 207 [2022-11-20 10:54:49,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:49,685 INFO L225 Difference]: With dead ends: 72138 [2022-11-20 10:54:49,686 INFO L226 Difference]: Without dead ends: 46180 [2022-11-20 10:54:49,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 10:54:49,825 INFO L413 NwaCegarLoop]: 2682 mSDtfsCounter, 1842 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:49,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 4882 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:54:49,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46180 states. [2022-11-20 10:54:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46180 to 46097. [2022-11-20 10:54:52,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46097 states, 31674 states have (on average 1.3041927132664015) internal successors, (41309), 32208 states have internal predecessors, (41309), 11987 states have call successors, (11987), 2452 states have call predecessors, (11987), 2435 states have return successors, (11986), 11754 states have call predecessors, (11986), 11986 states have call successors, (11986) [2022-11-20 10:54:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46097 states to 46097 states and 65282 transitions. [2022-11-20 10:54:53,183 INFO L78 Accepts]: Start accepts. Automaton has 46097 states and 65282 transitions. Word has length 207 [2022-11-20 10:54:53,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:53,187 INFO L495 AbstractCegarLoop]: Abstraction has 46097 states and 65282 transitions. [2022-11-20 10:54:53,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 10:54:53,187 INFO L276 IsEmpty]: Start isEmpty. Operand 46097 states and 65282 transitions. [2022-11-20 10:54:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 10:54:53,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:53,196 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-11-20 10:54:53,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:53,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:53,411 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1665043729, now seen corresponding path program 1 times [2022-11-20 10:54:53,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:53,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449030195] [2022-11-20 10:54:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:53,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:53,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:53,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:53,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:54:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:56,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:54:56,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-20 10:54:57,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:54:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-20 10:54:57,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:57,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449030195] [2022-11-20 10:54:57,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449030195] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:54:57,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:54:57,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-11-20 10:54:57,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767964030] [2022-11-20 10:54:57,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:57,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:54:57,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:54:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:54:57,924 INFO L87 Difference]: Start difference. First operand 46097 states and 65282 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:55:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:13,983 INFO L93 Difference]: Finished difference Result 125065 states and 178645 transitions. [2022-11-20 10:55:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:55:13,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 207 [2022-11-20 10:55:13,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:14,390 INFO L225 Difference]: With dead ends: 125065 [2022-11-20 10:55:14,390 INFO L226 Difference]: Without dead ends: 79000 [2022-11-20 10:55:14,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:55:14,603 INFO L413 NwaCegarLoop]: 4142 mSDtfsCounter, 3816 mSDsluCounter, 19257 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 23399 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:14,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3823 Valid, 23399 Invalid, 3579 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [418 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-11-20 10:55:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79000 states. [2022-11-20 10:55:18,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79000 to 68881. [2022-11-20 10:55:18,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68881 states, 47320 states have (on average 1.30469146238377) internal successors, (61738), 48108 states have internal predecessors, (61738), 17931 states have call successors, (17931), 3654 states have call predecessors, (17931), 3629 states have return successors, (17930), 17594 states have call predecessors, (17930), 17930 states have call successors, (17930) [2022-11-20 10:55:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68881 states to 68881 states and 97599 transitions. [2022-11-20 10:55:19,510 INFO L78 Accepts]: Start accepts. Automaton has 68881 states and 97599 transitions. Word has length 207 [2022-11-20 10:55:19,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:19,511 INFO L495 AbstractCegarLoop]: Abstraction has 68881 states and 97599 transitions. [2022-11-20 10:55:19,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:55:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 68881 states and 97599 transitions. [2022-11-20 10:55:19,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-20 10:55:19,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:19,523 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-11-20 10:55:19,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:55:19,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:19,739 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:55:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1092876866, now seen corresponding path program 1 times [2022-11-20 10:55:19,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:19,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829370668] [2022-11-20 10:55:19,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:19,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:19,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:19,749 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:55:19,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:55:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:22,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:55:22,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:55:23,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:55:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:55:24,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:24,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829370668] [2022-11-20 10:55:24,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829370668] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:55:24,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:55:24,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-20 10:55:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354523281] [2022-11-20 10:55:24,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:55:24,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:55:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:55:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:55:24,135 INFO L87 Difference]: Start difference. First operand 68881 states and 97599 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 10:56:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:04,414 INFO L93 Difference]: Finished difference Result 159163 states and 226983 transitions. [2022-11-20 10:56:04,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 10:56:04,415 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 208 [2022-11-20 10:56:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:05,120 INFO L225 Difference]: With dead ends: 159163 [2022-11-20 10:56:05,120 INFO L226 Difference]: Without dead ends: 90314 [2022-11-20 10:56:05,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:56:05,426 INFO L413 NwaCegarLoop]: 6465 mSDtfsCounter, 9698 mSDsluCounter, 30277 mSDsCounter, 0 mSdLazyCounter, 9646 mSolverCounterSat, 3009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9909 SdHoareTripleChecker+Valid, 36742 SdHoareTripleChecker+Invalid, 12655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3009 IncrementalHoareTripleChecker+Valid, 9646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:05,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9909 Valid, 36742 Invalid, 12655 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3009 Valid, 9646 Invalid, 0 Unknown, 0 Unchecked, 32.5s Time] [2022-11-20 10:56:05,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90314 states. [2022-11-20 10:56:11,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90314 to 80225. [2022-11-20 10:56:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80225 states, 55102 states have (on average 1.304616892308809) internal successors, (71887), 56028 states have internal predecessors, (71887), 20891 states have call successors, (20891), 4260 states have call predecessors, (20891), 4231 states have return successors, (20898), 20490 states have call predecessors, (20898), 20890 states have call successors, (20898) [2022-11-20 10:56:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80225 states to 80225 states and 113676 transitions. [2022-11-20 10:56:12,704 INFO L78 Accepts]: Start accepts. Automaton has 80225 states and 113676 transitions. Word has length 208 [2022-11-20 10:56:12,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:12,705 INFO L495 AbstractCegarLoop]: Abstraction has 80225 states and 113676 transitions. [2022-11-20 10:56:12,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 10:56:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 80225 states and 113676 transitions. [2022-11-20 10:56:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-20 10:56:12,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:12,721 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-11-20 10:56:12,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:56:12,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:12,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:56:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1878632086, now seen corresponding path program 1 times [2022-11-20 10:56:12,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:56:12,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810648869] [2022-11-20 10:56:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:56:12,942 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:56:12,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d14fa-798f-4fb7-a669-c7b947d56546/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 10:56:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:16,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:56:16,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:56:17,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:56:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:56:17,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:56:17,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810648869] [2022-11-20 10:56:17,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810648869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:56:17,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:56:17,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-20 10:56:17,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797278755] [2022-11-20 10:56:17,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:56:17,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:56:17,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:56:17,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:56:17,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:56:17,631 INFO L87 Difference]: Start difference. First operand 80225 states and 113676 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 10:57:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:10,798 INFO L93 Difference]: Finished difference Result 181853 states and 259139 transitions. [2022-11-20 10:57:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 10:57:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 209 [2022-11-20 10:57:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:57:11,308 INFO L225 Difference]: With dead ends: 181853 [2022-11-20 10:57:11,309 INFO L226 Difference]: Without dead ends: 101660 [2022-11-20 10:57:11,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:57:11,595 INFO L413 NwaCegarLoop]: 6496 mSDtfsCounter, 9700 mSDsluCounter, 34577 mSDsCounter, 0 mSdLazyCounter, 12447 mSolverCounterSat, 2995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9911 SdHoareTripleChecker+Valid, 41073 SdHoareTripleChecker+Invalid, 15442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2995 IncrementalHoareTripleChecker+Valid, 12447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:57:11,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9911 Valid, 41073 Invalid, 15442 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2995 Valid, 12447 Invalid, 0 Unknown, 0 Unchecked, 42.6s Time] [2022-11-20 10:57:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101660 states.