./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--icplus--ipg.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_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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_650a1477-d2a6-4602-a58f-24254462fef0/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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:23:44,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:23:44,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:23:44,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:23:44,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:23:44,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:23:44,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:23:44,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:23:44,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:23:44,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:23:44,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:23:44,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:23:44,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:23:44,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:23:44,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:23:44,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:23:44,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:23:44,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:23:44,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:23:44,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:23:44,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:23:44,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:23:44,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:23:44,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:23:44,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:23:44,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:23:44,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:23:44,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:23:44,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:23:44,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:23:44,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:23:44,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:23:44,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:23:44,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:23:44,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:23:44,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:23:44,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:23:44,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:23:44,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:23:44,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:23:44,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:23:44,344 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:23:44,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:23:44,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:23:44,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:23:44,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:23:44,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:23:44,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:23:44,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:23:44,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:23:44,378 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:23:44,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:23:44,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:23:44,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:23:44,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:23:44,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:23:44,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:23:44,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:23:44,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:23:44,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:23:44,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:23:44,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:23:44,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:23:44,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:23:44,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:23:44,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:23:44,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:23:44,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:23:44,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:23:44,382 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:23:44,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:23:44,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:23:44,383 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_650a1477-d2a6-4602-a58f-24254462fef0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-11-20 12:23:44,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:23:44,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:23:44,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:23:44,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:23:44,797 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:23:44,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-20 12:23:48,222 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:23:48,922 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:23:48,925 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-20 12:23:48,974 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data/029190cbb/bae60b3103a64a5aba9659d554d41743/FLAG04dd01e54 [2022-11-20 12:23:49,001 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data/029190cbb/bae60b3103a64a5aba9659d554d41743 [2022-11-20 12:23:49,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:23:49,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:23:49,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:23:49,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:23:49,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:23:49,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:23:49" (1/1) ... [2022-11-20 12:23:49,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e16ce13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:23:49, skipping insertion in model container [2022-11-20 12:23:49,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:23:49" (1/1) ... [2022-11-20 12:23:49,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:23:49,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:23:49,906 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 12:23:49,913 INFO L158 Benchmark]: Toolchain (without parser) took 906.03ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 92.1MB in the end (delta: 12.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 12:23:49,913 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 85.5MB in the end (delta: 105.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:23:49,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 903.38ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 92.1MB in the end (delta: 12.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 12:23:49,916 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 111.1MB. Free memory was 85.6MB in the beginning and 85.5MB in the end (delta: 105.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 903.38ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 92.1MB in the end (delta: 12.2MB). Peak memory consumption was 35.7MB. 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_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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_650a1477-d2a6-4602-a58f-24254462fef0/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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:23:52,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:23:52,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:23:52,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:23:52,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:23:52,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:23:52,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:23:52,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:23:52,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:23:52,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:23:52,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:23:52,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:23:52,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:23:52,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:23:52,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:23:52,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:23:52,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:23:52,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:23:52,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:23:52,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:23:52,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:23:52,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:23:52,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:23:52,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:23:52,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:23:52,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:23:52,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:23:52,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:23:52,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:23:52,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:23:52,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:23:52,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:23:52,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:23:52,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:23:52,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:23:52,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:23:52,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:23:52,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:23:52,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:23:52,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:23:52,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:23:52,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:23:52,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:23:52,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:23:52,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:23:52,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:23:52,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:23:52,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:23:52,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:23:52,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:23:52,818 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:23:52,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:23:52,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:23:52,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:23:52,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:23:52,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:23:52,820 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:23:52,821 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:23:52,821 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:23:52,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:23:52,821 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:23:52,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:23:52,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:23:52,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:23:52,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:23:52,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:23:52,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:23:52,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:23:52,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:23:52,823 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:23:52,823 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:23:52,824 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:23:52,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:23:52,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:23:52,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:23:52,825 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_650a1477-d2a6-4602-a58f-24254462fef0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-11-20 12:23:53,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:23:53,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:23:53,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:23:53,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:23:53,311 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:23:53,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-20 12:23:56,568 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:23:57,152 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:23:57,153 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-20 12:23:57,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data/0bb894f21/165156988f7947489801d4d92882a26a/FLAGd7feacd81 [2022-11-20 12:23:57,249 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/data/0bb894f21/165156988f7947489801d4d92882a26a [2022-11-20 12:23:57,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:23:57,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:23:57,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:23:57,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:23:57,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:23:57,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:23:57" (1/1) ... [2022-11-20 12:23:57,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce454a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:23:57, skipping insertion in model container [2022-11-20 12:23:57,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:23:57" (1/1) ... [2022-11-20 12:23:57,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:23:57,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:23:59,820 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_650a1477-d2a6-4602-a58f-24254462fef0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-20 12:23:59,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:23:59,965 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:24:00,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:24:00,441 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_650a1477-d2a6-4602-a58f-24254462fef0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-20 12:24:00,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:24:00,485 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:24:00,910 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_650a1477-d2a6-4602-a58f-24254462fef0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-20 12:24:00,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:24:01,213 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:24:01,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01 WrapperNode [2022-11-20 12:24:01,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:24:01,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:24:01,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:24:01,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:24:01,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,593 INFO L138 Inliner]: procedures = 277, calls = 1355, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3200 [2022-11-20 12:24:01,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:24:01,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:24:01,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:24:01,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:24:01,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,839 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:24:01,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:24:01,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:24:01,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:24:01,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (1/1) ... [2022-11-20 12:24:01,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:24:01,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:01,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:24:01,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:24:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-20 12:24:01,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-20 12:24:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:24:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:24:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 12:24:01,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 12:24:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:24:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:24:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:24:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:24:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:24:01,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:24:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-20 12:24:01,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-20 12:24:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:24:01,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:24:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:24:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:24:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-11-20 12:24:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-11-20 12:24:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:24:01,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:24:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 12:24:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 12:24:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:24:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:24:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 12:24:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 12:24:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-20 12:24:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-20 12:24:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:24:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:24:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 12:24:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 12:24:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 12:24:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 12:24:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 12:24:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 12:24:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-20 12:24:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-20 12:24:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:24:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:24:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 12:24:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 12:24:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-20 12:24:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-20 12:24:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 12:24:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 12:24:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:24:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:24:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 12:24:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 12:24:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:24:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:24:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 12:24:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 12:24:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-20 12:24:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-20 12:24:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-20 12:24:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-20 12:24:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-20 12:24:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-20 12:24:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:24:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 12:24:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 12:24:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-20 12:24:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-20 12:24:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-20 12:24:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-20 12:24:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:24:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 12:24:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 12:24:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:24:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:24:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-20 12:24:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-20 12:24:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 12:24:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 12:24:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-20 12:24:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-20 12:24:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 12:24:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 12:24:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:24:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-20 12:24:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-20 12:24:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:24:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:24:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:24:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:24:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:24:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 12:24:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:24:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:24:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:24:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-20 12:24:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-20 12:24:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 12:24:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 12:24:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:24:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:24:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:24:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:24:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 12:24:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 12:24:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:24:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:24:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-20 12:24:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-20 12:24:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-20 12:24:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-20 12:24:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-20 12:24:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-20 12:24:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-11-20 12:24:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-11-20 12:24:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 12:24:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 12:24:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:24:02,052 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:24:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:24:02,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:24:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:24:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:24:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 12:24:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 12:24:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 12:24:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 12:24:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 12:24:02,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 12:24:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 12:24:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 12:24:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 12:24:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 12:24:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-20 12:24:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-20 12:24:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:24:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:24:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:24:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:24:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-20 12:24:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-20 12:24:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:24:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:24:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-20 12:24:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-20 12:24:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 12:24:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 12:24:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-20 12:24:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-20 12:24:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:24:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-20 12:24:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-20 12:24:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 12:24:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 12:24:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-20 12:24:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-20 12:24:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:24:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:24:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:24:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:24:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:24:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:24:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 12:24:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 12:24:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 12:24:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 12:24:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:24:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-20 12:24:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-20 12:24:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 12:24:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 12:24:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-20 12:24:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-20 12:24:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 12:24:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 12:24:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:24:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:24:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-20 12:24:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-20 12:24:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 12:24:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 12:24:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-20 12:24:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-20 12:24:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-20 12:24:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-20 12:24:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-11-20 12:24:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-11-20 12:24:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 12:24:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 12:24:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:24:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-20 12:24:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-20 12:24:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-20 12:24:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-20 12:24:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 12:24:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 12:24:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:24:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:24:03,035 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:24:03,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:24:10,169 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:24:45,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:24:45,794 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:24:45,794 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:24:45,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:45 BoogieIcfgContainer [2022-11-20 12:24:45,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:24:45,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:24:45,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:24:45,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:24:45,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:23:57" (1/3) ... [2022-11-20 12:24:45,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2902d07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:45, skipping insertion in model container [2022-11-20 12:24:45,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:01" (2/3) ... [2022-11-20 12:24:45,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2902d07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:45, skipping insertion in model container [2022-11-20 12:24:45,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:45" (3/3) ... [2022-11-20 12:24:45,810 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-20 12:24:45,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:24:45,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:24:45,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:24:45,932 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;@72311cf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:24:45,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:24:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 1380 states, 934 states have (on average 1.2944325481798715) internal successors, (1209), 967 states have internal predecessors, (1209), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-11-20 12:24:45,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 12:24:45,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:45,972 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:45,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:45,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash 866419922, now seen corresponding path program 1 times [2022-11-20 12:24:46,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:46,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256901765] [2022-11-20 12:24:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:46,001 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 12:24:46,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:46,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:46,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:47,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:24:47,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-20 12:24:47,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:24:47,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:24:47,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256901765] [2022-11-20 12:24:47,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256901765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:47,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:47,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:24:47,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328012094] [2022-11-20 12:24:47,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:47,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:24:47,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:24:47,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:24:47,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:24:47,827 INFO L87 Difference]: Start difference. First operand has 1380 states, 934 states have (on average 1.2944325481798715) internal successors, (1209), 967 states have internal predecessors, (1209), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 12:24:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:48,078 INFO L93 Difference]: Finished difference Result 2749 states and 3890 transitions. [2022-11-20 12:24:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:24:48,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2022-11-20 12:24:48,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:48,120 INFO L225 Difference]: With dead ends: 2749 [2022-11-20 12:24:48,121 INFO L226 Difference]: Without dead ends: 1353 [2022-11-20 12:24:48,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 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 12:24:48,141 INFO L413 NwaCegarLoop]: 1913 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, 1913 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 12:24:48,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:24:48,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-11-20 12:24:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1353. [2022-11-20 12:24:48,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 917 states have (on average 1.282442748091603) internal successors, (1176), 939 states have internal predecessors, (1176), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-20 12:24:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1883 transitions. [2022-11-20 12:24:48,313 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1883 transitions. Word has length 121 [2022-11-20 12:24:48,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:48,314 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1883 transitions. [2022-11-20 12:24:48,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 12:24:48,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1883 transitions. [2022-11-20 12:24:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 12:24:48,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:48,322 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:48,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:48,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:48,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1365599798, now seen corresponding path program 1 times [2022-11-20 12:24:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:48,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143387521] [2022-11-20 12:24:48,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:48,552 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 12:24:48,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:48,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:48,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:50,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:24:50,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 12:24:50,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:24:50,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:24:50,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143387521] [2022-11-20 12:24:50,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143387521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:50,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:50,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:24:50,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979834141] [2022-11-20 12:24:50,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:50,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:24:50,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:24:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:24:50,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:24:50,548 INFO L87 Difference]: Start difference. First operand 1353 states and 1883 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:24:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:50,876 INFO L93 Difference]: Finished difference Result 2698 states and 3755 transitions. [2022-11-20 12:24:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:24:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2022-11-20 12:24:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:50,889 INFO L225 Difference]: With dead ends: 2698 [2022-11-20 12:24:50,890 INFO L226 Difference]: Without dead ends: 1354 [2022-11-20 12:24:50,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 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 12:24:50,898 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 3 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5638 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:50,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5638 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-11-20 12:24:50,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2022-11-20 12:24:50,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 918 states have (on average 1.2821350762527233) internal successors, (1177), 940 states have internal predecessors, (1177), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-20 12:24:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1884 transitions. [2022-11-20 12:24:50,978 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1884 transitions. Word has length 121 [2022-11-20 12:24:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:50,980 INFO L495 AbstractCegarLoop]: Abstraction has 1354 states and 1884 transitions. [2022-11-20 12:24:50,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:24:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1884 transitions. [2022-11-20 12:24:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 12:24:50,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:50,995 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:51,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:51,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:51,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:51,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:51,221 INFO L85 PathProgramCache]: Analyzing trace with hash -482689842, now seen corresponding path program 1 times [2022-11-20 12:24:51,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:51,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253049380] [2022-11-20 12:24:51,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:51,224 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 12:24:51,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:51,226 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:51,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:52,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:24:52,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:53,086 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-20 12:24:53,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-20 12:24:53,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:24:53,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253049380] [2022-11-20 12:24:53,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253049380] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:53,901 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:24:53,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 12:24:53,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948977369] [2022-11-20 12:24:53,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:53,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:24:53,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:24:53,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:24:53,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:24:53,904 INFO L87 Difference]: Start difference. First operand 1354 states and 1884 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:24:54,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:54,616 INFO L93 Difference]: Finished difference Result 2705 states and 3765 transitions. [2022-11-20 12:24:54,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:24:54,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2022-11-20 12:24:54,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:54,627 INFO L225 Difference]: With dead ends: 2705 [2022-11-20 12:24:54,628 INFO L226 Difference]: Without dead ends: 1357 [2022-11-20 12:24:54,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:24:54,636 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 16 mSDsluCounter, 7517 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9398 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:54,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9398 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:24:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-11-20 12:24:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2022-11-20 12:24:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 921 states have (on average 1.281216069489685) internal successors, (1180), 943 states have internal predecessors, (1180), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-20 12:24:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1887 transitions. [2022-11-20 12:24:54,710 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1887 transitions. Word has length 124 [2022-11-20 12:24:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:54,711 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1887 transitions. [2022-11-20 12:24:54,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:24:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1887 transitions. [2022-11-20 12:24:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 12:24:54,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:54,716 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:54,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:54,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:54,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:54,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2070948938, now seen corresponding path program 1 times [2022-11-20 12:24:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:54,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232407959] [2022-11-20 12:24:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:54,944 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 12:24:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:54,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:54,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:56,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:24:56,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:24:58,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:24:58,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:24:58,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232407959] [2022-11-20 12:24:58,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232407959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:58,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:58,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:24:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915237168] [2022-11-20 12:24:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:58,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:24:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:24:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:24:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:24:58,072 INFO L87 Difference]: Start difference. First operand 1357 states and 1887 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:24:58,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:58,733 INFO L93 Difference]: Finished difference Result 4030 states and 5634 transitions. [2022-11-20 12:24:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:24:58,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 129 [2022-11-20 12:24:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:58,762 INFO L225 Difference]: With dead ends: 4030 [2022-11-20 12:24:58,762 INFO L226 Difference]: Without dead ends: 2698 [2022-11-20 12:24:58,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:24:58,774 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 1847 mSDsluCounter, 6512 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 8847 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:58,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 8847 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:24:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-11-20 12:24:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2689. [2022-11-20 12:24:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 1825 states have (on average 1.2810958904109588) internal successors, (2338), 1869 states have internal predecessors, (2338), 701 states have call successors, (701), 163 states have call predecessors, (701), 162 states have return successors, (712), 700 states have call predecessors, (712), 700 states have call successors, (712) [2022-11-20 12:24:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3751 transitions. [2022-11-20 12:24:58,968 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3751 transitions. Word has length 129 [2022-11-20 12:24:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:58,969 INFO L495 AbstractCegarLoop]: Abstraction has 2689 states and 3751 transitions. [2022-11-20 12:24:58,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:24:58,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3751 transitions. [2022-11-20 12:24:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-20 12:24:58,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:58,978 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:59,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:59,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:59,200 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:59,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:59,201 INFO L85 PathProgramCache]: Analyzing trace with hash 496439990, now seen corresponding path program 2 times [2022-11-20 12:24:59,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:59,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141157222] [2022-11-20 12:24:59,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:24:59,202 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 12:24:59,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:59,203 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:24:59,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:00,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:25:00,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:25:00,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:25:00,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:25:01,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:25:01,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:25:01,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141157222] [2022-11-20 12:25:01,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141157222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:01,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:01,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:25:01,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004990176] [2022-11-20 12:25:01,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:01,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:25:01,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:25:01,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:25:01,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:25:01,540 INFO L87 Difference]: Start difference. First operand 2689 states and 3751 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:25:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:25:02,271 INFO L93 Difference]: Finished difference Result 8038 states and 11283 transitions. [2022-11-20 12:25:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:25:02,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 130 [2022-11-20 12:25:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:25:02,317 INFO L225 Difference]: With dead ends: 8038 [2022-11-20 12:25:02,317 INFO L226 Difference]: Without dead ends: 5374 [2022-11-20 12:25:02,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:25:02,338 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 1848 mSDsluCounter, 6336 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 8583 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:25:02,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 8583 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:25:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2022-11-20 12:25:02,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5359. [2022-11-20 12:25:02,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 3638 states have (on average 1.2806487080813633) internal successors, (4659), 3726 states have internal predecessors, (4659), 1395 states have call successors, (1395), 326 states have call predecessors, (1395), 325 states have return successors, (1448), 1394 states have call predecessors, (1448), 1394 states have call successors, (1448) [2022-11-20 12:25:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 7502 transitions. [2022-11-20 12:25:02,797 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 7502 transitions. Word has length 130 [2022-11-20 12:25:02,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:25:02,798 INFO L495 AbstractCegarLoop]: Abstraction has 5359 states and 7502 transitions. [2022-11-20 12:25:02,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:25:02,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 7502 transitions. [2022-11-20 12:25:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 12:25:02,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:25:02,802 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:25:02,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:25:03,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:03,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:25:03,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:03,020 INFO L85 PathProgramCache]: Analyzing trace with hash 899333113, now seen corresponding path program 1 times [2022-11-20 12:25:03,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:25:03,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474666712] [2022-11-20 12:25:03,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:03,022 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 12:25:03,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:25:03,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:03,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:04,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:25:04,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:25:06,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:25:06,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:25:06,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474666712] [2022-11-20 12:25:06,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474666712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:06,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:06,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:25:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204211278] [2022-11-20 12:25:06,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:06,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:25:06,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:25:06,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:25:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:25:06,039 INFO L87 Difference]: Start difference. First operand 5359 states and 7502 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:25:07,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:25:07,086 INFO L93 Difference]: Finished difference Result 16060 states and 22649 transitions. [2022-11-20 12:25:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:25:07,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2022-11-20 12:25:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:25:07,186 INFO L225 Difference]: With dead ends: 16060 [2022-11-20 12:25:07,186 INFO L226 Difference]: Without dead ends: 10726 [2022-11-20 12:25:07,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:25:07,224 INFO L413 NwaCegarLoop]: 2487 mSDtfsCounter, 1848 mSDsluCounter, 6818 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 9305 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:25:07,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 9305 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:25:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-11-20 12:25:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 10659. [2022-11-20 12:25:08,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10659 states, 7230 states have (on average 1.2806362378976486) internal successors, (9259), 7418 states have internal predecessors, (9259), 2779 states have call successors, (2779), 650 states have call predecessors, (2779), 649 states have return successors, (2954), 2766 states have call predecessors, (2954), 2778 states have call successors, (2954) [2022-11-20 12:25:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10659 states to 10659 states and 14992 transitions. [2022-11-20 12:25:08,128 INFO L78 Accepts]: Start accepts. Automaton has 10659 states and 14992 transitions. Word has length 128 [2022-11-20 12:25:08,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:25:08,131 INFO L495 AbstractCegarLoop]: Abstraction has 10659 states and 14992 transitions. [2022-11-20 12:25:08,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:25:08,132 INFO L276 IsEmpty]: Start isEmpty. Operand 10659 states and 14992 transitions. [2022-11-20 12:25:08,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-20 12:25:08,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:25:08,139 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:25:08,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:08,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:08,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:25:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash -308591001, now seen corresponding path program 1 times [2022-11-20 12:25:08,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:25:08,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405497572] [2022-11-20 12:25:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:08,358 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 12:25:08,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:25:08,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:08,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:10,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:25:10,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:25:11,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:25:11,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:25:11,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405497572] [2022-11-20 12:25:11,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405497572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:11,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:11,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:25:11,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502247237] [2022-11-20 12:25:11,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:11,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:25:11,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:25:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:25:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:25:11,546 INFO L87 Difference]: Start difference. First operand 10659 states and 14992 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:25:13,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:25:13,263 INFO L93 Difference]: Finished difference Result 31701 states and 44890 transitions. [2022-11-20 12:25:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:25:13,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 131 [2022-11-20 12:25:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:25:13,530 INFO L225 Difference]: With dead ends: 31701 [2022-11-20 12:25:13,530 INFO L226 Difference]: Without dead ends: 21067 [2022-11-20 12:25:13,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:25:13,596 INFO L413 NwaCegarLoop]: 2235 mSDtfsCounter, 1849 mSDsluCounter, 6312 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 8547 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:25:13,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 8547 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:25:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21067 states. [2022-11-20 12:25:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21067 to 20995. [2022-11-20 12:25:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20995 states, 14239 states have (on average 1.27881171430578) internal successors, (18209), 14599 states have internal predecessors, (18209), 5465 states have call successors, (5465), 1291 states have call predecessors, (5465), 1290 states have return successors, (5966), 5444 states have call predecessors, (5966), 5464 states have call successors, (5966) [2022-11-20 12:25:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20995 states to 20995 states and 29640 transitions. [2022-11-20 12:25:15,404 INFO L78 Accepts]: Start accepts. Automaton has 20995 states and 29640 transitions. Word has length 131 [2022-11-20 12:25:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:25:15,405 INFO L495 AbstractCegarLoop]: Abstraction has 20995 states and 29640 transitions. [2022-11-20 12:25:15,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:25:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 20995 states and 29640 transitions. [2022-11-20 12:25:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-20 12:25:15,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:25:15,412 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:25:15,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:15,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:15,628 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:25:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1526527107, now seen corresponding path program 1 times [2022-11-20 12:25:15,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:25:15,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852753751] [2022-11-20 12:25:15,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:15,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:25:15,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:25:15,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:15,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:17,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:25:17,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 12:25:18,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:25:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 12:25:19,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:25:19,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852753751] [2022-11-20 12:25:19,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852753751] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:25:19,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:25:19,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-11-20 12:25:19,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989858264] [2022-11-20 12:25:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:19,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:25:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:25:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:25:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:25:19,953 INFO L87 Difference]: Start difference. First operand 20995 states and 29640 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:25:38,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:25:38,917 INFO L93 Difference]: Finished difference Result 52767 states and 74857 transitions. [2022-11-20 12:25:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 12:25:38,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2022-11-20 12:25:38,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:25:39,132 INFO L225 Difference]: With dead ends: 52767 [2022-11-20 12:25:39,133 INFO L226 Difference]: Without dead ends: 31797 [2022-11-20 12:25:39,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:25:39,236 INFO L413 NwaCegarLoop]: 2986 mSDtfsCounter, 2308 mSDsluCounter, 13909 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 16895 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:25:39,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2315 Valid, 16895 Invalid, 2587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [376 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2022-11-20 12:25:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31797 states. [2022-11-20 12:25:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31797 to 31456. [2022-11-20 12:25:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31456 states, 21327 states have (on average 1.2788015192010127) internal successors, (27273), 21862 states have internal predecessors, (27273), 8202 states have call successors, (8202), 1920 states have call predecessors, (8202), 1926 states have return successors, (9009), 8177 states have call predecessors, (9009), 8201 states have call successors, (9009) [2022-11-20 12:25:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31456 states to 31456 states and 44484 transitions. [2022-11-20 12:25:41,979 INFO L78 Accepts]: Start accepts. Automaton has 31456 states and 44484 transitions. Word has length 141 [2022-11-20 12:25:41,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:25:41,980 INFO L495 AbstractCegarLoop]: Abstraction has 31456 states and 44484 transitions. [2022-11-20 12:25:41,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:25:41,981 INFO L276 IsEmpty]: Start isEmpty. Operand 31456 states and 44484 transitions. [2022-11-20 12:25:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 12:25:41,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:25:41,989 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 12:25:42,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:42,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:42,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:25:42,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:42,213 INFO L85 PathProgramCache]: Analyzing trace with hash -239322131, now seen corresponding path program 1 times [2022-11-20 12:25:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:25:42,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760487450] [2022-11-20 12:25:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:42,215 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 12:25:42,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:25:42,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:42,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:25:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:44,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:25:44,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:25:45,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:25:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:25:46,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:25:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760487450] [2022-11-20 12:25:46,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760487450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:25:46,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:25:46,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-20 12:25:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400646447] [2022-11-20 12:25:46,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:25:46,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:25:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:25:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:25:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:25:46,684 INFO L87 Difference]: Start difference. First operand 31456 states and 44484 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 12:26:30,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:30,657 INFO L93 Difference]: Finished difference Result 68283 states and 96617 transitions. [2022-11-20 12:26:30,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 12:26:30,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 142 [2022-11-20 12:26:30,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:31,039 INFO L225 Difference]: With dead ends: 68283 [2022-11-20 12:26:31,039 INFO L226 Difference]: Without dead ends: 36852 [2022-11-20 12:26:31,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 12:26:31,175 INFO L413 NwaCegarLoop]: 4039 mSDtfsCounter, 5915 mSDsluCounter, 23482 mSDsCounter, 0 mSdLazyCounter, 5474 mSolverCounterSat, 1859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 27521 SdHoareTripleChecker+Invalid, 7333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1859 IncrementalHoareTripleChecker+Valid, 5474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:31,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5929 Valid, 27521 Invalid, 7333 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1859 Valid, 5474 Invalid, 0 Unknown, 0 Unchecked, 38.6s Time] [2022-11-20 12:26:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36852 states. [2022-11-20 12:26:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36852 to 36569. [2022-11-20 12:26:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36569 states, 24789 states have (on average 1.2781879059260155) internal successors, (31685), 25412 states have internal predecessors, (31685), 9536 states have call successors, (9536), 2233 states have call predecessors, (9536), 2243 states have return successors, (10461), 9503 states have call predecessors, (10461), 9535 states have call successors, (10461) [2022-11-20 12:26:33,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36569 states to 36569 states and 51682 transitions. [2022-11-20 12:26:33,912 INFO L78 Accepts]: Start accepts. Automaton has 36569 states and 51682 transitions. Word has length 142 [2022-11-20 12:26:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:33,913 INFO L495 AbstractCegarLoop]: Abstraction has 36569 states and 51682 transitions. [2022-11-20 12:26:33,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 12:26:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 36569 states and 51682 transitions. [2022-11-20 12:26:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 12:26:33,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:33,924 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 12:26:33,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:26:34,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:26:34,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:26:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2061627108, now seen corresponding path program 1 times [2022-11-20 12:26:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:26:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201702376] [2022-11-20 12:26:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:34,151 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 12:26:34,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:26:34,153 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:26:34,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:26:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:35,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:26:35,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:37,707 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:26:37,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:26:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:26:38,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:26:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201702376] [2022-11-20 12:26:38,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201702376] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:26:38,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:26:38,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-20 12:26:38,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291456718] [2022-11-20 12:26:38,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:26:38,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:26:38,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:26:38,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:26:38,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:26:38,647 INFO L87 Difference]: Start difference. First operand 36569 states and 51682 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 12:27:28,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:27:28,751 INFO L93 Difference]: Finished difference Result 78421 states and 110880 transitions. [2022-11-20 12:27:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 12:27:28,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 143 [2022-11-20 12:27:28,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:27:28,992 INFO L225 Difference]: With dead ends: 78421 [2022-11-20 12:27:28,992 INFO L226 Difference]: Without dead ends: 41877 [2022-11-20 12:27:29,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 12:27:29,147 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 6210 mSDsluCounter, 23457 mSDsCounter, 0 mSdLazyCounter, 6573 mSolverCounterSat, 1933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6224 SdHoareTripleChecker+Valid, 27053 SdHoareTripleChecker+Invalid, 8506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1933 IncrementalHoareTripleChecker+Valid, 6573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:27:29,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6224 Valid, 27053 Invalid, 8506 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1933 Valid, 6573 Invalid, 0 Unknown, 0 Unchecked, 44.4s Time] [2022-11-20 12:27:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41877 states. [2022-11-20 12:27:31,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41877 to 41610. [2022-11-20 12:27:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41610 states, 28201 states have (on average 1.2777915676749052) internal successors, (36035), 28909 states have internal predecessors, (36035), 10851 states have call successors, (10851), 2545 states have call predecessors, (10851), 2557 states have return successors, (11884), 10811 states have call predecessors, (11884), 10850 states have call successors, (11884) [2022-11-20 12:27:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41610 states to 41610 states and 58770 transitions. [2022-11-20 12:27:31,927 INFO L78 Accepts]: Start accepts. Automaton has 41610 states and 58770 transitions. Word has length 143 [2022-11-20 12:27:31,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:27:31,928 INFO L495 AbstractCegarLoop]: Abstraction has 41610 states and 58770 transitions. [2022-11-20 12:27:31,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 12:27:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 41610 states and 58770 transitions. [2022-11-20 12:27:31,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 12:27:31,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:27:31,940 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 12:27:31,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:27:32,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:27:32,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:27:32,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:27:32,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1339092698, now seen corresponding path program 1 times [2022-11-20 12:27:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:27:32,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887810729] [2022-11-20 12:27:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:27:32,168 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 12:27:32,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:27:32,169 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:27:32,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:27:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:27:33,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:27:33,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:27:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:27:35,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:27:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 12:27:36,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:27:36,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887810729] [2022-11-20 12:27:36,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887810729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:27:36,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:27:36,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-20 12:27:36,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741899530] [2022-11-20 12:27:36,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:27:36,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:27:36,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:27:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:27:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:27:36,411 INFO L87 Difference]: Start difference. First operand 41610 states and 58770 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 12:28:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:18,080 INFO L93 Difference]: Finished difference Result 88459 states and 124985 transitions. [2022-11-20 12:28:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 12:28:18,081 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 144 [2022-11-20 12:28:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:18,360 INFO L225 Difference]: With dead ends: 88459 [2022-11-20 12:28:18,360 INFO L226 Difference]: Without dead ends: 46874 [2022-11-20 12:28:18,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 12:28:18,530 INFO L413 NwaCegarLoop]: 3599 mSDtfsCounter, 6203 mSDsluCounter, 21561 mSDsCounter, 0 mSdLazyCounter, 5217 mSolverCounterSat, 1934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6217 SdHoareTripleChecker+Valid, 25160 SdHoareTripleChecker+Invalid, 7151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1934 IncrementalHoareTripleChecker+Valid, 5217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:18,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6217 Valid, 25160 Invalid, 7151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1934 Valid, 5217 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2022-11-20 12:28:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46874 states. [2022-11-20 12:28:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46874 to 46618. [2022-11-20 12:28:21,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46618 states, 31590 states have (on average 1.2774928774928775) internal successors, (40356), 32382 states have internal predecessors, (40356), 12157 states have call successors, (12157), 2857 states have call predecessors, (12157), 2870 states have return successors, (13296), 12110 states have call predecessors, (13296), 12156 states have call successors, (13296) [2022-11-20 12:28:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46618 states to 46618 states and 65809 transitions. [2022-11-20 12:28:21,703 INFO L78 Accepts]: Start accepts. Automaton has 46618 states and 65809 transitions. Word has length 144 [2022-11-20 12:28:21,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:21,704 INFO L495 AbstractCegarLoop]: Abstraction has 46618 states and 65809 transitions. [2022-11-20 12:28:21,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 12:28:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 46618 states and 65809 transitions. [2022-11-20 12:28:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 12:28:21,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:21,719 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:21,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:28:21,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:28:21,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:21,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:21,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1793458447, now seen corresponding path program 1 times [2022-11-20 12:28:21,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:28:21,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533238777] [2022-11-20 12:28:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:21,947 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 12:28:21,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:28:21,949 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:28:21,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:28:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:23,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:28:23,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:28:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-20 12:28:25,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:28:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-20 12:28:27,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:28:27,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533238777] [2022-11-20 12:28:27,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533238777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:28:27,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:28:27,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2022-11-20 12:28:27,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290396177] [2022-11-20 12:28:27,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:28:27,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 12:28:27,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:28:27,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 12:28:27,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:28:27,448 INFO L87 Difference]: Start difference. First operand 46618 states and 65809 transitions. Second operand has 16 states, 16 states have (on average 5.5) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 12:29:22,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:22,636 INFO L93 Difference]: Finished difference Result 123773 states and 175274 transitions. [2022-11-20 12:29:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 12:29:22,637 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 155 [2022-11-20 12:29:22,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:23,184 INFO L225 Difference]: With dead ends: 123773 [2022-11-20 12:29:23,184 INFO L226 Difference]: Without dead ends: 77180 [2022-11-20 12:29:23,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=333, Invalid=1389, Unknown=0, NotChecked=0, Total=1722 [2022-11-20 12:29:23,382 INFO L413 NwaCegarLoop]: 3826 mSDtfsCounter, 7348 mSDsluCounter, 26567 mSDsCounter, 0 mSdLazyCounter, 6868 mSolverCounterSat, 2729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7362 SdHoareTripleChecker+Valid, 30393 SdHoareTripleChecker+Invalid, 9597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2729 IncrementalHoareTripleChecker+Valid, 6868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:23,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7362 Valid, 30393 Invalid, 9597 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2729 Valid, 6868 Invalid, 0 Unknown, 0 Unchecked, 46.9s Time] [2022-11-20 12:29:23,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77180 states. [2022-11-20 12:29:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77180 to 71765. [2022-11-20 12:29:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71765 states, 48612 states have (on average 1.2761869497243479) internal successors, (62038), 49825 states have internal predecessors, (62038), 18696 states have call successors, (18696), 4427 states have call predecessors, (18696), 4456 states have return successors, (20395), 18624 states have call predecessors, (20395), 18695 states have call successors, (20395) [2022-11-20 12:29:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71765 states to 71765 states and 101129 transitions. [2022-11-20 12:29:29,615 INFO L78 Accepts]: Start accepts. Automaton has 71765 states and 101129 transitions. Word has length 155 [2022-11-20 12:29:29,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:29,616 INFO L495 AbstractCegarLoop]: Abstraction has 71765 states and 101129 transitions. [2022-11-20 12:29:29,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 12:29:29,617 INFO L276 IsEmpty]: Start isEmpty. Operand 71765 states and 101129 transitions. [2022-11-20 12:29:29,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 12:29:29,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:29,649 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:29,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:29,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:29:29,872 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:29,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:29,873 INFO L85 PathProgramCache]: Analyzing trace with hash 524014008, now seen corresponding path program 1 times [2022-11-20 12:29:29,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:29:29,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63919096] [2022-11-20 12:29:29,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:29,875 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 12:29:29,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:29:29,876 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/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 12:29:29,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_650a1477-d2a6-4602-a58f-24254462fef0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 12:29:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:31,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:29:31,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 12:29:31,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:31,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:29:31,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63919096] [2022-11-20 12:29:31,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63919096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:31,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:31,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:29:31,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531931043] [2022-11-20 12:29:31,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:31,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:31,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:29:31,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:31,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:31,801 INFO L87 Difference]: Start difference. First operand 71765 states and 101129 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 12:29:41,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:41,486 INFO L93 Difference]: Finished difference Result 215021 states and 303741 transitions. [2022-11-20 12:29:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:41,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2022-11-20 12:29:41,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:42,373 INFO L225 Difference]: With dead ends: 215021 [2022-11-20 12:29:42,374 INFO L226 Difference]: Without dead ends: 143281 [2022-11-20 12:29:42,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 12:29:42,679 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 1861 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:42,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 4123 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:29:42,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143281 states.