./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-08_1a-drivers--scsi--sg.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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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 884b97cc6fb4051ca91e84ac99a2a164f2566357f30136c91fcf54410ed45574 --- 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 11:29:49,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:29:49,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:29:49,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:29:49,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:29:49,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:29:49,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:29:49,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:29:49,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:29:49,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:29:49,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:29:49,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:29:49,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:29:49,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:29:49,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:29:49,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:29:49,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:29:49,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:29:49,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:29:49,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:29:49,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:29:49,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:29:49,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:29:49,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:29:49,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:29:49,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:29:49,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:29:49,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:29:49,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:29:49,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:29:49,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:29:49,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:29:49,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:29:49,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:29:49,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:29:49,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:29:49,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:29:49,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:29:49,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:29:49,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:29:49,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:29:49,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:29:49,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:29:49,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:29:49,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:29:49,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:29:49,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:29:49,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:29:49,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:29:49,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:29:49,458 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:29:49,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:29:49,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:29:49,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:29:49,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:29:49,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:29:49,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:29:49,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:29:49,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:29:49,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:29:49,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:29:49,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:29:49,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:29:49,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:49,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:29:49,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:29:49,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:29:49,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:29:49,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:29:49,462 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:29:49,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:29:49,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:29:49,462 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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884b97cc6fb4051ca91e84ac99a2a164f2566357f30136c91fcf54410ed45574 [2022-11-20 11:29:49,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:29:49,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:29:49,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:29:49,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:29:49,810 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:29:49,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-11-20 11:29:53,361 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:29:54,191 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:29:54,192 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-11-20 11:29:54,262 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data/576b02ac3/0c7f639e81d04728bc654cf182b80b62/FLAGf066219dd [2022-11-20 11:29:54,286 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data/576b02ac3/0c7f639e81d04728bc654cf182b80b62 [2022-11-20 11:29:54,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:29:54,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:29:54,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:29:54,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:29:54,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:29:54,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:54" (1/1) ... [2022-11-20 11:29:54,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eef38c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:54, skipping insertion in model container [2022-11-20 11:29:54,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:54" (1/1) ... [2022-11-20 11:29:54,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:29:54,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:29:55,312 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 11:29:55,325 INFO L158 Benchmark]: Toolchain (without parser) took 1028.76ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 66.6MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,326 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:29:55,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1022.03ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 66.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1022.03ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 66.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. 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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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 884b97cc6fb4051ca91e84ac99a2a164f2566357f30136c91fcf54410ed45574 --- 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 11:29:58,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:29:58,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:29:58,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:29:58,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:29:58,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:29:58,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:29:58,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:29:58,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:29:58,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:29:58,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:29:58,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:29:58,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:29:58,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:29:58,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:29:58,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:29:58,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:29:58,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:29:58,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:29:58,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:29:58,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:29:58,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:29:58,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:29:58,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:29:58,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:29:58,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:29:58,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:29:58,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:29:58,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:29:58,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:29:58,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:29:58,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:29:58,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:29:58,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:29:58,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:29:58,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:29:58,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:29:58,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:29:58,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:29:58,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:29:58,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:29:58,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:29:58,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:29:58,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:29:58,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:29:58,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:29:58,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:29:58,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:29:58,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:29:58,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:29:58,337 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:29:58,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:29:58,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:29:58,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:29:58,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:29:58,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:29:58,339 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:29:58,339 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:29:58,339 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:29:58,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:29:58,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:29:58,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:29:58,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:29:58,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:29:58,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:29:58,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:58,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:29:58,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:29:58,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:29:58,342 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:29:58,342 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:29:58,342 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:29:58,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:29:58,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:29:58,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:29:58,343 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884b97cc6fb4051ca91e84ac99a2a164f2566357f30136c91fcf54410ed45574 [2022-11-20 11:29:58,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:29:58,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:29:58,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:29:58,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:29:58,861 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:29:58,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-11-20 11:30:02,423 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:03,263 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:03,264 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-11-20 11:30:03,338 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data/d0b1deaaa/1c689e21f7b44ab99af1d68252adb15c/FLAGb1881b6b0 [2022-11-20 11:30:03,369 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/data/d0b1deaaa/1c689e21f7b44ab99af1d68252adb15c [2022-11-20 11:30:03,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:03,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:03,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:03,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:03,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:03,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:03" (1/1) ... [2022-11-20 11:30:03,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b820ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:03, skipping insertion in model container [2022-11-20 11:30:03,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:03" (1/1) ... [2022-11-20 11:30:03,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:03,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:06,584 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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i[397949,397962] [2022-11-20 11:30:06,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:06,735 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:30:06,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:07,431 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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i[397949,397962] [2022-11-20 11:30:07,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:07,507 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:30:08,263 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_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i[397949,397962] [2022-11-20 11:30:08,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:08,384 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:30:08,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08 WrapperNode [2022-11-20 11:30:08,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:08,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:08,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:30:08,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:30:08,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:08,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:08,692 INFO L138 Inliner]: procedures = 346, calls = 2875, calls flagged for inlining = 154, calls inlined = 147, statements flattened = 8312 [2022-11-20 11:30:08,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:08,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:30:08,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:30:08,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:30:08,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:08,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:08,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:08,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:09,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:09,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:09,095 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:09,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:09,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:30:09,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:30:09,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:30:09,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:30:09,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (1/1) ... [2022-11-20 11:30:09,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:09,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:09,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:30:09,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:30:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:30:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:30:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:30:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure sg_finish_rem_req [2022-11-20 11:30:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_finish_rem_req [2022-11-20 11:30:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-20 11:30:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-20 11:30:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:30:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure sg_rq_end_io_usercontext [2022-11-20 11:30:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_rq_end_io_usercontext [2022-11-20 11:30:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:30:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2022-11-20 11:30:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2022-11-20 11:30:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:30:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:30:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:30:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:30:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:30:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-20 11:30:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-20 11:30:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:30:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:30:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 11:30:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 11:30:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure srp_done [2022-11-20 11:30:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure srp_done [2022-11-20 11:30:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-11-20 11:30:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-11-20 11:30:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 11:30:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 11:30:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 11:30:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 11:30:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:30:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:30:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-20 11:30:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-20 11:30:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-20 11:30:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-20 11:30:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure sg_mmap [2022-11-20 11:30:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_mmap [2022-11-20 11:30:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-20 11:30:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-20 11:30:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure sg_res_in_use [2022-11-20 11:30:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_res_in_use [2022-11-20 11:30:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:30:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:30:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:30:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:30:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure sg_poll [2022-11-20 11:30:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_poll [2022-11-20 11:30:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-20 11:30:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-20 11:30:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-20 11:30:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure max_sectors_bytes [2022-11-20 11:30:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure max_sectors_bytes [2022-11-20 11:30:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-11-20 11:30:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-11-20 11:30:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:30:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:30:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:30:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:30:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:30:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:30:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure sg_remove_request [2022-11-20 11:30:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_remove_request [2022-11-20 11:30:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 11:30:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 11:30:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_irqsave [2022-11-20 11:30:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_irqsave [2022-11-20 11:30:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure sg_common_write [2022-11-20 11:30:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_common_write [2022-11-20 11:30:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:30:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:30:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:30:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:30:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-20 11:30:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-20 11:30:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-20 11:30:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:30:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:30:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irq [2022-11-20 11:30:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irq [2022-11-20 11:30:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure sg_proc_write_adio [2022-11-20 11:30:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_proc_write_adio [2022-11-20 11:30:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-20 11:30:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-20 11:30:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:30:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:30:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:30:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:30:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:30:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:30:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_operations_7 [2022-11-20 11:30:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_operations_7 [2022-11-20 11:30:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:30:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 11:30:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 11:30:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:30:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:30:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2022-11-20 11:30:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2022-11-20 11:30:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-20 11:30:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-20 11:30:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-20 11:30:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-20 11:30:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure dev_seq_stop [2022-11-20 11:30:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_seq_stop [2022-11-20 11:30:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-20 11:30:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-20 11:30:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 11:30:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 11:30:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 11:30:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 11:30:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:30:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:30:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 11:30:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 11:30:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure sg_get_rq_mark [2022-11-20 11:30:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_get_rq_mark [2022-11-20 11:30:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 11:30:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 11:30:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 11:30:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 11:30:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure blk_trace_startstop [2022-11-20 11:30:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_trace_startstop [2022-11-20 11:30:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure sg_allow_access [2022-11-20 11:30:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_allow_access [2022-11-20 11:30:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure __rwlock_init [2022-11-20 11:30:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __rwlock_init [2022-11-20 11:30:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-20 11:30:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-20 11:30:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_seq_start [2022-11-20 11:30:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_seq_start [2022-11-20 11:30:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2022-11-20 11:30:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2022-11-20 11:30:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-20 11:30:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-20 11:30:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-20 11:30:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-20 11:30:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-20 11:30:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-20 11:30:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:30:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:30:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure sg_lookup_dev [2022-11-20 11:30:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_lookup_dev [2022-11-20 11:30:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure sg_remove_sfp_usercontext [2022-11-20 11:30:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_remove_sfp_usercontext [2022-11-20 11:30:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure sg_remove_scat [2022-11-20 11:30:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_remove_scat [2022-11-20 11:30:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure sg_fasync [2022-11-20 11:30:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_fasync [2022-11-20 11:30:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 11:30:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 11:30:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:30:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:30:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-11-20 11:30:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-11-20 11:30:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-20 11:30:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-20 11:30:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-20 11:30:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 11:30:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 11:30:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-20 11:30:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-20 11:30:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2022-11-20 11:30:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2022-11-20 11:30:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_irqrestore [2022-11-20 11:30:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_irqrestore [2022-11-20 11:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-20 11:30:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-20 11:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:30:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:30:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-20 11:30:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-20 11:30:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure sg_new_write [2022-11-20 11:30:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_new_write [2022-11-20 11:30:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-20 11:30:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-20 11:30:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 11:30:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 11:30:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:30:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 11:30:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 11:30:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-20 11:30:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-20 11:30:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:30:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2022-11-20 11:30:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2022-11-20 11:30:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:30:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2022-11-20 11:30:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2022-11-20 11:30:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:30:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:30:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure sg_write [2022-11-20 11:30:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_write [2022-11-20 11:30:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:30:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:30:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:30:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:30:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-11-20 11:30:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-11-20 11:30:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2022-11-20 11:30:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2022-11-20 11:30:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 11:30:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 11:30:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure dev_seq_next [2022-11-20 11:30:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_seq_next [2022-11-20 11:30:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure sg_new_read [2022-11-20 11:30:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_new_read [2022-11-20 11:30:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 11:30:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 11:30:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure sg_build_reserve [2022-11-20 11:30:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_build_reserve [2022-11-20 11:30:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 11:30:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 11:30:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure sg_add_request [2022-11-20 11:30:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_add_request [2022-11-20 11:30:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 11:30:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 11:30:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-20 11:30:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-20 11:30:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure sg_proc_write_dressz [2022-11-20 11:30:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_proc_write_dressz [2022-11-20 11:30:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 11:30:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 11:30:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure sg_build_indirect [2022-11-20 11:30:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_build_indirect [2022-11-20 11:30:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:30:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:30:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-20 11:30:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-20 11:30:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-20 11:30:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-20 11:30:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-20 11:30:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-20 11:30:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul_from_user [2022-11-20 11:30:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul_from_user [2022-11-20 11:30:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 11:30:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 11:30:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:30:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2022-11-20 11:30:09,307 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2022-11-20 11:30:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 11:30:09,307 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 11:30:09,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:30:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:30:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2022-11-20 11:30:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2022-11-20 11:30:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 11:30:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 11:30:10,639 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:30:10,649 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:30:13,565 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:30:13,699 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5379: SUMMARY for call __copy_to_user_nocheck_#t~ret199#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_to_user_nocheck_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 11:30:13,699 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5379-1: __copy_to_user_nocheck_~tmp___1~4#1 := __copy_to_user_nocheck_#t~ret199#1;havoc __copy_to_user_nocheck_#t~ret199#1; [2022-11-20 11:30:13,699 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5367: SUMMARY for call __copy_to_user_nocheck_#t~ret198#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_to_user_nocheck_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 11:30:13,699 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5367-1: __copy_to_user_nocheck_~tmp___0~8#1 := __copy_to_user_nocheck_#t~ret198#1;havoc __copy_to_user_nocheck_#t~ret198#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume __copy_to_user_nocheck_#t~switch197#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume !__copy_to_user_nocheck_#t~switch197#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5347: havoc __copy_to_user_nocheck_#t~switch197#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5380: assume 0bv64 != __copy_to_user_nocheck_~tmp___1~4#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5380: assume !(0bv64 != __copy_to_user_nocheck_~tmp___1~4#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5376: assume __copy_to_user_nocheck_#t~switch197#1; [2022-11-20 11:30:13,700 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5376: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := true; [2022-11-20 11:30:13,701 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume 0bv64 != __copy_to_user_nocheck_~tmp___0~8#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,701 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !(0bv64 != __copy_to_user_nocheck_~tmp___0~8#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,701 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5364: assume __copy_to_user_nocheck_#t~switch197#1; [2022-11-20 11:30:13,701 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5364: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 16bv32 == __copy_to_user_nocheck_~size#1; [2022-11-20 11:30:13,701 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5360: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,701 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5360: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 10bv32 == __copy_to_user_nocheck_~size#1; [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5389: SUMMARY for call __copy_to_user_nocheck_#t~ret200#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5356: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5356: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 8bv32 == __copy_to_user_nocheck_~size#1; [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5389-1: __copy_to_user_nocheck_~tmp___2~4#1 := __copy_to_user_nocheck_#t~ret200#1;havoc __copy_to_user_nocheck_#t~ret200#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~tmp___2~4#1[32:0]; [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5352: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-11-20 11:30:13,702 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5352: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 4bv32 == __copy_to_user_nocheck_~size#1; [2022-11-20 11:30:13,703 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 2bv32 == __copy_to_user_nocheck_~size#1; [2022-11-20 11:30:40,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5312-1: __copy_from_user_nocheck_~tmp___1~3#1 := __copy_from_user_nocheck_#t~ret193#1;havoc __copy_from_user_nocheck_#t~ret193#1; [2022-11-20 11:30:40,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5312: SUMMARY for call __copy_from_user_nocheck_#t~ret193#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_nocheck_~ret~1#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 11:30:40,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5308: assume __copy_from_user_nocheck_#t~switch191#1; [2022-11-20 11:30:40,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5308: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := true; [2022-11-20 11:30:40,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5300: assume 0bv64 != __copy_from_user_nocheck_~tmp___0~7#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5300: assume !(0bv64 != __copy_from_user_nocheck_~tmp___0~7#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5321: assume __copy_from_user_nocheck_#t~switch191#1; [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5321: assume !__copy_from_user_nocheck_#t~switch191#1; [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5313: assume 0bv64 != __copy_from_user_nocheck_~tmp___1~3#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5313: assume !(0bv64 != __copy_from_user_nocheck_~tmp___1~3#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5280: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5280: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 4bv32 == __copy_from_user_nocheck_~size#1; [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5322: SUMMARY for call __copy_from_user_nocheck_#t~ret194#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2022-11-20 11:30:40,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5322-1: __copy_from_user_nocheck_~tmp___2~3#1 := __copy_from_user_nocheck_#t~ret194#1;havoc __copy_from_user_nocheck_#t~ret194#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~tmp___2~3#1[32:0]; [2022-11-20 11:30:40,138 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5285: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,138 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5285: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 8bv32 == __copy_from_user_nocheck_~size#1; [2022-11-20 11:30:40,138 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5290: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,138 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5290: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 10bv32 == __copy_from_user_nocheck_~size#1; [2022-11-20 11:30:40,138 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-11-20 11:30:40,138 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 2bv32 == __copy_from_user_nocheck_~size#1; [2022-11-20 11:30:40,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5274: havoc __copy_from_user_nocheck_#t~switch191#1; [2022-11-20 11:30:40,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5299: SUMMARY for call __copy_from_user_nocheck_#t~ret192#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_nocheck_~ret~1#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 11:30:40,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5299-1: __copy_from_user_nocheck_~tmp___0~7#1 := __copy_from_user_nocheck_#t~ret192#1;havoc __copy_from_user_nocheck_#t~ret192#1; [2022-11-20 11:30:40,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5295: assume __copy_from_user_nocheck_#t~switch191#1; [2022-11-20 11:30:40,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5295: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 16bv32 == __copy_from_user_nocheck_~size#1; [2022-11-20 11:30:59,921 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:30:59,960 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:30:59,963 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:30:59,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:59 BoogieIcfgContainer [2022-11-20 11:30:59,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:30:59,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:30:59,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:30:59,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:30:59,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:03" (1/3) ... [2022-11-20 11:30:59,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebb5fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:59, skipping insertion in model container [2022-11-20 11:30:59,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:08" (2/3) ... [2022-11-20 11:30:59,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebb5fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:59, skipping insertion in model container [2022-11-20 11:30:59,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:59" (3/3) ... [2022-11-20 11:30:59,987 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-11-20 11:31:00,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:00,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:31:00,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:00,239 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;@63bb5e5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:00,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:31:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 2610 states, 1914 states have (on average 1.4367816091954022) internal successors, (2750), 1959 states have internal predecessors, (2750), 585 states have call successors, (585), 110 states have call predecessors, (585), 109 states have return successors, (568), 566 states have call predecessors, (568), 568 states have call successors, (568) [2022-11-20 11:31:00,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2022-11-20 11:31:00,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:00,328 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:00,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:00,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:00,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1798875423, now seen corresponding path program 1 times [2022-11-20 11:31:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:00,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790854562] [2022-11-20 11:31:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:00,362 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 11:31:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:00,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:00,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 4684 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:31:04,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 9302 backedges. 2285 proven. 0 refuted. 0 times theorem prover too weak. 7017 trivial. 0 not checked. [2022-11-20 11:31:05,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:05,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:05,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790854562] [2022-11-20 11:31:05,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790854562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:05,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:05,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:05,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539186262] [2022-11-20 11:31:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:05,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:31:05,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:05,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:31:05,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:31:05,119 INFO L87 Difference]: Start difference. First operand has 2610 states, 1914 states have (on average 1.4367816091954022) internal successors, (2750), 1959 states have internal predecessors, (2750), 585 states have call successors, (585), 110 states have call predecessors, (585), 109 states have return successors, (568), 566 states have call predecessors, (568), 568 states have call successors, (568) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-20 11:31:05,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:05,361 INFO L93 Difference]: Finished difference Result 5215 states and 7907 transitions. [2022-11-20 11:31:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:31:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 806 [2022-11-20 11:31:05,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:05,409 INFO L225 Difference]: With dead ends: 5215 [2022-11-20 11:31:05,409 INFO L226 Difference]: Without dead ends: 2584 [2022-11-20 11:31:05,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 805 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 11:31:05,442 INFO L413 NwaCegarLoop]: 3897 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, 3897 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 11:31:05,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:05,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states. [2022-11-20 11:31:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 2584. [2022-11-20 11:31:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 1907 states have (on average 1.4268484530676455) internal successors, (2721), 1933 states have internal predecessors, (2721), 568 states have call successors, (568), 109 states have call predecessors, (568), 108 states have return successors, (566), 564 states have call predecessors, (566), 566 states have call successors, (566) [2022-11-20 11:31:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3855 transitions. [2022-11-20 11:31:05,799 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3855 transitions. Word has length 806 [2022-11-20 11:31:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:05,803 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 3855 transitions. [2022-11-20 11:31:05,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-20 11:31:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3855 transitions. [2022-11-20 11:31:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2022-11-20 11:31:05,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:05,858 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:05,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:06,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:06,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash 308143187, now seen corresponding path program 1 times [2022-11-20 11:31:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:06,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719531783] [2022-11-20 11:31:06,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:06,089 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 11:31:06,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:06,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:06,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:10,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 4684 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:31:10,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 9302 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 9014 trivial. 0 not checked. [2022-11-20 11:31:10,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:10,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:10,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719531783] [2022-11-20 11:31:10,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719531783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:10,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:10,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:10,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110388254] [2022-11-20 11:31:10,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:10,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:10,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:10,665 INFO L87 Difference]: Start difference. First operand 2584 states and 3855 transitions. Second operand has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 11:31:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:12,483 INFO L93 Difference]: Finished difference Result 5118 states and 7712 transitions. [2022-11-20 11:31:12,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:12,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 806 [2022-11-20 11:31:12,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:12,503 INFO L225 Difference]: With dead ends: 5118 [2022-11-20 11:31:12,503 INFO L226 Difference]: Without dead ends: 2585 [2022-11-20 11:31:12,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:31:12,514 INFO L413 NwaCegarLoop]: 3819 mSDtfsCounter, 6 mSDsluCounter, 15196 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 19015 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:12,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19015 Invalid, 292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:31:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2022-11-20 11:31:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2585. [2022-11-20 11:31:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 1908 states have (on average 1.4266247379454926) internal successors, (2722), 1934 states have internal predecessors, (2722), 568 states have call successors, (568), 109 states have call predecessors, (568), 108 states have return successors, (566), 564 states have call predecessors, (566), 566 states have call successors, (566) [2022-11-20 11:31:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 3856 transitions. [2022-11-20 11:31:12,629 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 3856 transitions. Word has length 806 [2022-11-20 11:31:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:12,635 INFO L495 AbstractCegarLoop]: Abstraction has 2585 states and 3856 transitions. [2022-11-20 11:31:12,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 11:31:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 3856 transitions. [2022-11-20 11:31:12,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2022-11-20 11:31:12,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:12,647 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:12,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:12,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:12,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:12,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash 611145835, now seen corresponding path program 1 times [2022-11-20 11:31:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:12,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506725993] [2022-11-20 11:31:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:12,878 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 11:31:12,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:12,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:12,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:17,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 5047 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:31:17,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 10919 backedges. 384 proven. 1 refuted. 0 times theorem prover too weak. 10534 trivial. 0 not checked. [2022-11-20 11:31:17,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 10919 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 10598 trivial. 0 not checked. [2022-11-20 11:31:19,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506725993] [2022-11-20 11:31:19,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506725993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:19,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:19,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 11:31:19,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540699580] [2022-11-20 11:31:19,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:19,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:31:19,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:19,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:31:19,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:31:19,239 INFO L87 Difference]: Start difference. First operand 2585 states and 3856 transitions. Second operand has 11 states, 9 states have (on average 13.444444444444445) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (98), 2 states have call predecessors, (98), 5 states have return successors, (98), 4 states have call predecessors, (98), 4 states have call successors, (98) [2022-11-20 11:31:21,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:21,523 INFO L93 Difference]: Finished difference Result 5125 states and 7720 transitions. [2022-11-20 11:31:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:31:21,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 13.444444444444445) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (98), 2 states have call predecessors, (98), 5 states have return successors, (98), 4 states have call predecessors, (98), 4 states have call successors, (98) Word has length 839 [2022-11-20 11:31:21,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:21,541 INFO L225 Difference]: With dead ends: 5125 [2022-11-20 11:31:21,542 INFO L226 Difference]: Without dead ends: 2591 [2022-11-20 11:31:21,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1679 GetRequests, 1667 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:31:21,553 INFO L413 NwaCegarLoop]: 3820 mSDtfsCounter, 14 mSDsluCounter, 18978 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22798 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:21,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22798 Invalid, 397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 11:31:21,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-11-20 11:31:21,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2591. [2022-11-20 11:31:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 1912 states have (on average 1.4257322175732217) internal successors, (2726), 1938 states have internal predecessors, (2726), 569 states have call successors, (569), 110 states have call predecessors, (569), 109 states have return successors, (567), 565 states have call predecessors, (567), 567 states have call successors, (567) [2022-11-20 11:31:21,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3862 transitions. [2022-11-20 11:31:21,652 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3862 transitions. Word has length 839 [2022-11-20 11:31:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:21,653 INFO L495 AbstractCegarLoop]: Abstraction has 2591 states and 3862 transitions. [2022-11-20 11:31:21,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 13.444444444444445) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (98), 2 states have call predecessors, (98), 5 states have return successors, (98), 4 states have call predecessors, (98), 4 states have call successors, (98) [2022-11-20 11:31:21,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3862 transitions. [2022-11-20 11:31:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2022-11-20 11:31:21,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:21,666 INFO L195 NwaCegarLoop]: trace histogram [66, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:21,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:21,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:21,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:21,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash 292550483, now seen corresponding path program 2 times [2022-11-20 11:31:21,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:21,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104572813] [2022-11-20 11:31:21,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:31:21,893 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 11:31:21,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:21,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:21,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:24,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:31:24,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:24,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:31:24,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:30,667 INFO L134 CoverageAnalysis]: Checked inductivity of 13625 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13625 trivial. 0 not checked. [2022-11-20 11:31:30,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:30,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:30,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104572813] [2022-11-20 11:31:30,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104572813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:30,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:30,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:30,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798638223] [2022-11-20 11:31:30,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:30,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:30,672 INFO L87 Difference]: Start difference. First operand 2591 states and 3862 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-20 11:31:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:30,920 INFO L93 Difference]: Finished difference Result 7507 states and 11213 transitions. [2022-11-20 11:31:30,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:30,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 872 [2022-11-20 11:31:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:30,963 INFO L225 Difference]: With dead ends: 7507 [2022-11-20 11:31:30,963 INFO L226 Difference]: Without dead ends: 5049 [2022-11-20 11:31:30,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 870 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 11:31:30,980 INFO L413 NwaCegarLoop]: 4421 mSDtfsCounter, 3638 mSDsluCounter, 3674 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 8095 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:30,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3638 Valid, 8095 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5049 states. [2022-11-20 11:31:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5049 to 5040. [2022-11-20 11:31:31,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 3748 states have (on average 1.4340981856990396) internal successors, (5375), 3800 states have internal predecessors, (5375), 1075 states have call successors, (1075), 217 states have call predecessors, (1075), 216 states have return successors, (1084), 1068 states have call predecessors, (1084), 1073 states have call successors, (1084) [2022-11-20 11:31:31,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 7534 transitions. [2022-11-20 11:31:31,344 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 7534 transitions. Word has length 872 [2022-11-20 11:31:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:31,348 INFO L495 AbstractCegarLoop]: Abstraction has 5040 states and 7534 transitions. [2022-11-20 11:31:31,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-20 11:31:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 7534 transitions. [2022-11-20 11:31:31,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2022-11-20 11:31:31,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:31,361 INFO L195 NwaCegarLoop]: trace histogram [66, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:31,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:31,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:31,577 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash 550715921, now seen corresponding path program 1 times [2022-11-20 11:31:31,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:31,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422536901] [2022-11-20 11:31:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:31,579 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 11:31:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:31,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:31,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:35,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 5408 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:31:35,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 13625 backedges. 544 proven. 3 refuted. 0 times theorem prover too weak. 13078 trivial. 0 not checked. [2022-11-20 11:31:36,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 13625 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 13142 trivial. 0 not checked. [2022-11-20 11:31:38,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:38,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422536901] [2022-11-20 11:31:38,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422536901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:38,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:38,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 11:31:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955404670] [2022-11-20 11:31:38,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:38,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:31:38,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:38,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:31:38,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:31:38,078 INFO L87 Difference]: Start difference. First operand 5040 states and 7534 transitions. Second operand has 13 states, 11 states have (on average 11.181818181818182) internal successors, (123), 13 states have internal predecessors, (123), 4 states have call successors, (98), 2 states have call predecessors, (98), 5 states have return successors, (98), 4 states have call predecessors, (98), 4 states have call successors, (98) [2022-11-20 11:31:40,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:40,908 INFO L93 Difference]: Finished difference Result 10036 states and 15131 transitions. [2022-11-20 11:31:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:31:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.181818181818182) internal successors, (123), 13 states have internal predecessors, (123), 4 states have call successors, (98), 2 states have call predecessors, (98), 5 states have return successors, (98), 4 states have call predecessors, (98), 4 states have call successors, (98) Word has length 872 [2022-11-20 11:31:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:40,943 INFO L225 Difference]: With dead ends: 10036 [2022-11-20 11:31:40,944 INFO L226 Difference]: Without dead ends: 5042 [2022-11-20 11:31:40,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1731 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:31:40,967 INFO L413 NwaCegarLoop]: 3820 mSDtfsCounter, 11 mSDsluCounter, 22791 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26611 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:40,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26611 Invalid, 464 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:31:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2022-11-20 11:31:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 5042. [2022-11-20 11:31:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5042 states, 3750 states have (on average 1.4338666666666666) internal successors, (5377), 3802 states have internal predecessors, (5377), 1075 states have call successors, (1075), 217 states have call predecessors, (1075), 216 states have return successors, (1084), 1068 states have call predecessors, (1084), 1073 states have call successors, (1084) [2022-11-20 11:31:41,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5042 states to 5042 states and 7536 transitions. [2022-11-20 11:31:41,216 INFO L78 Accepts]: Start accepts. Automaton has 5042 states and 7536 transitions. Word has length 872 [2022-11-20 11:31:41,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:41,217 INFO L495 AbstractCegarLoop]: Abstraction has 5042 states and 7536 transitions. [2022-11-20 11:31:41,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.181818181818182) internal successors, (123), 13 states have internal predecessors, (123), 4 states have call successors, (98), 2 states have call predecessors, (98), 5 states have return successors, (98), 4 states have call predecessors, (98), 4 states have call successors, (98) [2022-11-20 11:31:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5042 states and 7536 transitions. [2022-11-20 11:31:41,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 906 [2022-11-20 11:31:41,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:41,230 INFO L195 NwaCegarLoop]: trace histogram [99, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:41,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:41,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:41,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash 225626153, now seen corresponding path program 2 times [2022-11-20 11:31:41,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:41,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148916786] [2022-11-20 11:31:41,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:31:41,451 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 11:31:41,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:41,452 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:41,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:44,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:31:44,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:44,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:31:44,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 17420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17420 trivial. 0 not checked. [2022-11-20 11:31:49,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:49,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:49,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148916786] [2022-11-20 11:31:49,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148916786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:49,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:49,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:49,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976013745] [2022-11-20 11:31:49,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:49,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:49,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:49,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:49,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:49,933 INFO L87 Difference]: Start difference. First operand 5042 states and 7536 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-20 11:31:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:50,360 INFO L93 Difference]: Finished difference Result 14857 states and 22257 transitions. [2022-11-20 11:31:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:50,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 905 [2022-11-20 11:31:50,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:50,441 INFO L225 Difference]: With dead ends: 14857 [2022-11-20 11:31:50,441 INFO L226 Difference]: Without dead ends: 9915 [2022-11-20 11:31:50,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 903 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 11:31:50,466 INFO L413 NwaCegarLoop]: 4361 mSDtfsCounter, 3627 mSDsluCounter, 3663 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 8024 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:50,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3627 Valid, 8024 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2022-11-20 11:31:50,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 9911. [2022-11-20 11:31:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9911 states, 7403 states have (on average 1.4382007294340133) internal successors, (10647), 7503 states have internal predecessors, (10647), 2079 states have call successors, (2079), 429 states have call predecessors, (2079), 428 states have return successors, (2099), 2068 states have call predecessors, (2099), 2077 states have call successors, (2099) [2022-11-20 11:31:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9911 states to 9911 states and 14825 transitions. [2022-11-20 11:31:51,024 INFO L78 Accepts]: Start accepts. Automaton has 9911 states and 14825 transitions. Word has length 905 [2022-11-20 11:31:51,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:51,025 INFO L495 AbstractCegarLoop]: Abstraction has 9911 states and 14825 transitions. [2022-11-20 11:31:51,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-20 11:31:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9911 states and 14825 transitions. [2022-11-20 11:31:51,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2022-11-20 11:31:51,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:51,043 INFO L195 NwaCegarLoop]: trace histogram [99, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:51,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:51,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:51,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:51,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:51,258 INFO L85 PathProgramCache]: Analyzing trace with hash -410282298, now seen corresponding path program 1 times [2022-11-20 11:31:51,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:51,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330022844] [2022-11-20 11:31:51,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:51,263 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 11:31:51,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:51,264 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:51,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:31:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 5944 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:31:56,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 17429 backedges. 768 proven. 6 refuted. 0 times theorem prover too weak. 16655 trivial. 0 not checked. [2022-11-20 11:31:57,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 17429 backedges. 0 proven. 710 refuted. 0 times theorem prover too weak. 16719 trivial. 0 not checked. [2022-11-20 11:31:59,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:59,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330022844] [2022-11-20 11:31:59,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330022844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:59,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:59,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 11:31:59,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708276084] [2022-11-20 11:31:59,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:59,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:31:59,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:31:59,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:31:59,262 INFO L87 Difference]: Start difference. First operand 9911 states and 14825 transitions. Second operand has 15 states, 13 states have (on average 12.153846153846153) internal successors, (158), 15 states have internal predecessors, (158), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:32:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:03,293 INFO L93 Difference]: Finished difference Result 19784 states and 29820 transitions. [2022-11-20 11:32:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:32:03,295 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 12.153846153846153) internal successors, (158), 15 states have internal predecessors, (158), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 942 [2022-11-20 11:32:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:03,355 INFO L225 Difference]: With dead ends: 19784 [2022-11-20 11:32:03,356 INFO L226 Difference]: Without dead ends: 9915 [2022-11-20 11:32:03,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1885 GetRequests, 1869 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:32:03,404 INFO L413 NwaCegarLoop]: 3820 mSDtfsCounter, 10 mSDsluCounter, 41865 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 45685 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:03,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 45685 Invalid, 688 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:32:03,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2022-11-20 11:32:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 9915. [2022-11-20 11:32:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9915 states, 7407 states have (on average 1.4379640880248414) internal successors, (10651), 7507 states have internal predecessors, (10651), 2079 states have call successors, (2079), 429 states have call predecessors, (2079), 428 states have return successors, (2099), 2068 states have call predecessors, (2099), 2077 states have call successors, (2099) [2022-11-20 11:32:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9915 states to 9915 states and 14829 transitions. [2022-11-20 11:32:04,075 INFO L78 Accepts]: Start accepts. Automaton has 9915 states and 14829 transitions. Word has length 942 [2022-11-20 11:32:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:04,077 INFO L495 AbstractCegarLoop]: Abstraction has 9915 states and 14829 transitions. [2022-11-20 11:32:04,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 12.153846153846153) internal successors, (158), 15 states have internal predecessors, (158), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:32:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9915 states and 14829 transitions. [2022-11-20 11:32:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2022-11-20 11:32:04,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:04,095 INFO L195 NwaCegarLoop]: trace histogram [132, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:04,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:04,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:04,309 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:32:04,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:04,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1048994396, now seen corresponding path program 1 times [2022-11-20 11:32:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:32:04,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304142724] [2022-11-20 11:32:04,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:04,314 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 11:32:04,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:32:04,316 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:04,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:09,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 6309 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:32:10,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 22313 backedges. 1056 proven. 10 refuted. 0 times theorem prover too weak. 21247 trivial. 0 not checked. [2022-11-20 11:32:10,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:32:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 22313 backedges. 0 proven. 1002 refuted. 0 times theorem prover too weak. 21311 trivial. 0 not checked. [2022-11-20 11:32:12,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:32:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304142724] [2022-11-20 11:32:12,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304142724] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:32:12,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:32:12,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 11:32:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026663790] [2022-11-20 11:32:12,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:32:12,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 11:32:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:32:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 11:32:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:32:12,925 INFO L87 Difference]: Start difference. First operand 9915 states and 14829 transitions. Second operand has 17 states, 15 states have (on average 10.733333333333333) internal successors, (161), 17 states have internal predecessors, (161), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:32:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:17,155 INFO L93 Difference]: Finished difference Result 19795 states and 29833 transitions. [2022-11-20 11:32:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:32:17,156 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 10.733333333333333) internal successors, (161), 17 states have internal predecessors, (161), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 976 [2022-11-20 11:32:17,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:17,289 INFO L225 Difference]: With dead ends: 19795 [2022-11-20 11:32:17,289 INFO L226 Difference]: Without dead ends: 9927 [2022-11-20 11:32:17,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1956 GetRequests, 1935 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:32:17,317 INFO L413 NwaCegarLoop]: 3821 mSDtfsCounter, 16 mSDsluCounter, 38051 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 41872 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:17,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 41872 Invalid, 673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 11:32:17,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9927 states. [2022-11-20 11:32:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9927 to 9927. [2022-11-20 11:32:17,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9927 states, 7418 states have (on average 1.4374494472903747) internal successors, (10663), 7518 states have internal predecessors, (10663), 2079 states have call successors, (2079), 430 states have call predecessors, (2079), 429 states have return successors, (2099), 2068 states have call predecessors, (2099), 2077 states have call successors, (2099) [2022-11-20 11:32:17,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9927 states to 9927 states and 14841 transitions. [2022-11-20 11:32:17,795 INFO L78 Accepts]: Start accepts. Automaton has 9927 states and 14841 transitions. Word has length 976 [2022-11-20 11:32:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:17,797 INFO L495 AbstractCegarLoop]: Abstraction has 9927 states and 14841 transitions. [2022-11-20 11:32:17,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 10.733333333333333) internal successors, (161), 17 states have internal predecessors, (161), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:32:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 9927 states and 14841 transitions. [2022-11-20 11:32:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2022-11-20 11:32:17,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:17,817 INFO L195 NwaCegarLoop]: trace histogram [153, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:17,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:18,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:18,033 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:32:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:18,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1785455978, now seen corresponding path program 2 times [2022-11-20 11:32:18,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:32:18,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770142332] [2022-11-20 11:32:18,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:32:18,038 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 11:32:18,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:32:18,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:18,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:21,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:32:21,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:32:21,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2330 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:32:21,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 25988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25988 trivial. 0 not checked. [2022-11-20 11:32:21,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:32:21,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:32:21,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770142332] [2022-11-20 11:32:21,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770142332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:21,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:21,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:32:21,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386354797] [2022-11-20 11:32:21,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:21,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:32:21,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:32:21,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:32:21,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:32:21,431 INFO L87 Difference]: Start difference. First operand 9927 states and 14841 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:32:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:22,246 INFO L93 Difference]: Finished difference Result 29491 states and 44251 transitions. [2022-11-20 11:32:22,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:32:22,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 996 [2022-11-20 11:32:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:22,345 INFO L225 Difference]: With dead ends: 29491 [2022-11-20 11:32:22,345 INFO L226 Difference]: Without dead ends: 19701 [2022-11-20 11:32:22,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 994 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 11:32:22,379 INFO L413 NwaCegarLoop]: 4369 mSDtfsCounter, 3835 mSDsluCounter, 3681 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 8050 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:22,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 8050 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:32:22,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19701 states. [2022-11-20 11:32:23,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19701 to 19691. [2022-11-20 11:32:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19691 states, 14744 states have (on average 1.4392973412913728) internal successors, (21221), 14944 states have internal predecessors, (21221), 4091 states have call successors, (4091), 856 states have call predecessors, (4091), 855 states have return successors, (4205), 4070 states have call predecessors, (4205), 4089 states have call successors, (4205) [2022-11-20 11:32:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19691 states to 19691 states and 29517 transitions. [2022-11-20 11:32:23,527 INFO L78 Accepts]: Start accepts. Automaton has 19691 states and 29517 transitions. Word has length 996 [2022-11-20 11:32:23,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:23,529 INFO L495 AbstractCegarLoop]: Abstraction has 19691 states and 29517 transitions. [2022-11-20 11:32:23,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:32:23,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19691 states and 29517 transitions. [2022-11-20 11:32:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2022-11-20 11:32:23,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:23,548 INFO L195 NwaCegarLoop]: trace histogram [153, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:23,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:23,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:23,761 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:32:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1361030915, now seen corresponding path program 1 times [2022-11-20 11:32:23,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:32:23,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020896080] [2022-11-20 11:32:23,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:23,766 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 11:32:23,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:32:23,773 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:23,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:30,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 6536 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:32:30,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 25988 backedges. 1336 proven. 15 refuted. 0 times theorem prover too weak. 24637 trivial. 0 not checked. [2022-11-20 11:32:30,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:32:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 25988 backedges. 0 proven. 1287 refuted. 0 times theorem prover too weak. 24701 trivial. 0 not checked. [2022-11-20 11:32:33,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:32:33,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020896080] [2022-11-20 11:32:33,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020896080] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:32:33,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:32:33,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-20 11:32:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229198017] [2022-11-20 11:32:33,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:32:33,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:32:33,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:32:33,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:32:33,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:32:33,713 INFO L87 Difference]: Start difference. First operand 19691 states and 29517 transitions. Second operand has 19 states, 17 states have (on average 9.470588235294118) internal successors, (161), 19 states have internal predecessors, (161), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:32:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:38,966 INFO L93 Difference]: Finished difference Result 39353 states and 59463 transitions. [2022-11-20 11:32:38,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:32:38,967 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 9.470588235294118) internal successors, (161), 19 states have internal predecessors, (161), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 995 [2022-11-20 11:32:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:39,075 INFO L225 Difference]: With dead ends: 39353 [2022-11-20 11:32:39,075 INFO L226 Difference]: Without dead ends: 19699 [2022-11-20 11:32:39,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1995 GetRequests, 1971 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:32:39,149 INFO L413 NwaCegarLoop]: 3822 mSDtfsCounter, 26 mSDsluCounter, 45685 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 49507 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:39,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 49507 Invalid, 805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 11:32:39,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19699 states. [2022-11-20 11:32:40,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19699 to 19699. [2022-11-20 11:32:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19699 states, 14752 states have (on average 1.4390591106290673) internal successors, (21229), 14952 states have internal predecessors, (21229), 4091 states have call successors, (4091), 856 states have call predecessors, (4091), 855 states have return successors, (4205), 4070 states have call predecessors, (4205), 4089 states have call successors, (4205) [2022-11-20 11:32:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19699 states to 19699 states and 29525 transitions. [2022-11-20 11:32:40,374 INFO L78 Accepts]: Start accepts. Automaton has 19699 states and 29525 transitions. Word has length 995 [2022-11-20 11:32:40,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:40,376 INFO L495 AbstractCegarLoop]: Abstraction has 19699 states and 29525 transitions. [2022-11-20 11:32:40,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 9.470588235294118) internal successors, (161), 19 states have internal predecessors, (161), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:32:40,376 INFO L276 IsEmpty]: Start isEmpty. Operand 19699 states and 29525 transitions. [2022-11-20 11:32:40,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1017 [2022-11-20 11:32:40,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:40,395 INFO L195 NwaCegarLoop]: trace histogram [174, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:40,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:40,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:40,609 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:32:40,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash -21995461, now seen corresponding path program 2 times [2022-11-20 11:32:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:32:40,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006406603] [2022-11-20 11:32:40,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:32:40,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:32:40,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:32:40,616 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:40,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:44,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:32:44,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:32:44,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:32:44,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 30104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30104 trivial. 0 not checked. [2022-11-20 11:32:44,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:32:44,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:32:44,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006406603] [2022-11-20 11:32:44,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006406603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:44,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:44,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:32:44,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065595663] [2022-11-20 11:32:44,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:44,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:32:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:32:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:32:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:32:44,629 INFO L87 Difference]: Start difference. First operand 19699 states and 29525 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:32:46,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:46,061 INFO L93 Difference]: Finished difference Result 49027 states and 73591 transitions. [2022-11-20 11:32:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:32:46,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 1016 [2022-11-20 11:32:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:46,210 INFO L225 Difference]: With dead ends: 49027 [2022-11-20 11:32:46,211 INFO L226 Difference]: Without dead ends: 29465 [2022-11-20 11:32:46,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1014 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 11:32:46,277 INFO L413 NwaCegarLoop]: 4364 mSDtfsCounter, 3830 mSDsluCounter, 3680 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 8044 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:46,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 8044 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:32:46,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29465 states. [2022-11-20 11:32:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29465 to 29455. [2022-11-20 11:32:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29455 states, 22074 states have (on average 1.439476306967473) internal successors, (31775), 22374 states have internal predecessors, (31775), 6099 states have call successors, (6099), 1282 states have call predecessors, (6099), 1281 states have return successors, (6303), 6068 states have call predecessors, (6303), 6097 states have call successors, (6303) [2022-11-20 11:32:48,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29455 states to 29455 states and 44177 transitions. [2022-11-20 11:32:48,213 INFO L78 Accepts]: Start accepts. Automaton has 29455 states and 44177 transitions. Word has length 1016 [2022-11-20 11:32:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:48,215 INFO L495 AbstractCegarLoop]: Abstraction has 29455 states and 44177 transitions. [2022-11-20 11:32:48,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:32:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 29455 states and 44177 transitions. [2022-11-20 11:32:48,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2022-11-20 11:32:48,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:48,231 INFO L195 NwaCegarLoop]: trace histogram [174, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:48,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:48,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:48,445 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:32:48,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:48,446 INFO L85 PathProgramCache]: Analyzing trace with hash 908326948, now seen corresponding path program 2 times [2022-11-20 11:32:48,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:32:48,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76268686] [2022-11-20 11:32:48,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:32:48,451 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 11:32:48,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:32:48,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:52,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:32:52,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:32:52,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:32:52,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:32:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 30104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30104 trivial. 0 not checked. [2022-11-20 11:32:52,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:32:52,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:32:52,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76268686] [2022-11-20 11:32:52,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76268686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:52,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:52,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:32:52,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576958642] [2022-11-20 11:32:52,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:52,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:32:52,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:32:52,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:32:52,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:32:52,565 INFO L87 Difference]: Start difference. First operand 29455 states and 44177 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:32:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:32:54,435 INFO L93 Difference]: Finished difference Result 68537 states and 102901 transitions. [2022-11-20 11:32:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:32:54,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 1018 [2022-11-20 11:32:54,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:32:54,585 INFO L225 Difference]: With dead ends: 68537 [2022-11-20 11:32:54,585 INFO L226 Difference]: Without dead ends: 39221 [2022-11-20 11:32:54,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 1016 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 11:32:54,658 INFO L413 NwaCegarLoop]: 4360 mSDtfsCounter, 3836 mSDsluCounter, 3681 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3836 SdHoareTripleChecker+Valid, 8041 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:32:54,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3836 Valid, 8041 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:32:54,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39221 states. [2022-11-20 11:32:57,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39221 to 39211. [2022-11-20 11:32:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39211 states, 29400 states have (on average 1.4397619047619048) internal successors, (42329), 29800 states have internal predecessors, (42329), 8103 states have call successors, (8103), 1708 states have call predecessors, (8103), 1707 states have return successors, (8393), 8062 states have call predecessors, (8393), 8101 states have call successors, (8393) [2022-11-20 11:32:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39211 states to 39211 states and 58825 transitions. [2022-11-20 11:32:57,160 INFO L78 Accepts]: Start accepts. Automaton has 39211 states and 58825 transitions. Word has length 1018 [2022-11-20 11:32:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:32:57,163 INFO L495 AbstractCegarLoop]: Abstraction has 39211 states and 58825 transitions. [2022-11-20 11:32:57,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:32:57,163 INFO L276 IsEmpty]: Start isEmpty. Operand 39211 states and 58825 transitions. [2022-11-20 11:32:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2022-11-20 11:32:57,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:32:57,181 INFO L195 NwaCegarLoop]: trace histogram [174, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:57,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:57,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:57,405 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:32:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1382090731, now seen corresponding path program 1 times [2022-11-20 11:32:57,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:32:57,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896342464] [2022-11-20 11:32:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:57,409 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 11:32:57,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:32:57,410 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:32:57,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:04,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 6765 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:33:04,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:33:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30104 backedges. 1656 proven. 21 refuted. 0 times theorem prover too weak. 28427 trivial. 0 not checked. [2022-11-20 11:33:05,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:33:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 30104 backedges. 0 proven. 1613 refuted. 0 times theorem prover too weak. 28491 trivial. 0 not checked. [2022-11-20 11:33:08,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:33:08,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896342464] [2022-11-20 11:33:08,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896342464] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:33:08,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:33:08,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-20 11:33:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525892001] [2022-11-20 11:33:08,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:33:08,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:33:08,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:33:08,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:33:08,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:33:08,476 INFO L87 Difference]: Start difference. First operand 39211 states and 58825 transitions. Second operand has 21 states, 19 states have (on average 8.526315789473685) internal successors, (162), 21 states have internal predecessors, (162), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:33:14,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:14,051 INFO L93 Difference]: Finished difference Result 78417 states and 118603 transitions. [2022-11-20 11:33:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:33:14,052 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 8.526315789473685) internal successors, (162), 21 states have internal predecessors, (162), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 1015 [2022-11-20 11:33:14,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:14,178 INFO L225 Difference]: With dead ends: 78417 [2022-11-20 11:33:14,178 INFO L226 Difference]: Without dead ends: 39227 [2022-11-20 11:33:14,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2035 GetRequests, 2009 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:33:14,265 INFO L413 NwaCegarLoop]: 3822 mSDtfsCounter, 36 mSDsluCounter, 34301 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 38123 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:14,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 38123 Invalid, 663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 11:33:14,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39227 states. [2022-11-20 11:33:16,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39227 to 39227. [2022-11-20 11:33:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39227 states, 29416 states have (on average 1.439522708729943) internal successors, (42345), 29816 states have internal predecessors, (42345), 8103 states have call successors, (8103), 1708 states have call predecessors, (8103), 1707 states have return successors, (8393), 8062 states have call predecessors, (8393), 8101 states have call successors, (8393) [2022-11-20 11:33:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39227 states to 39227 states and 58841 transitions. [2022-11-20 11:33:16,623 INFO L78 Accepts]: Start accepts. Automaton has 39227 states and 58841 transitions. Word has length 1015 [2022-11-20 11:33:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:16,624 INFO L495 AbstractCegarLoop]: Abstraction has 39227 states and 58841 transitions. [2022-11-20 11:33:16,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 8.526315789473685) internal successors, (162), 21 states have internal predecessors, (162), 4 states have call successors, (114), 2 states have call predecessors, (114), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 11:33:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 39227 states and 58841 transitions. [2022-11-20 11:33:16,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2022-11-20 11:33:16,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:16,642 INFO L195 NwaCegarLoop]: trace histogram [195, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:16,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 11:33:16,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:16,869 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:16,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:16,869 INFO L85 PathProgramCache]: Analyzing trace with hash 354698189, now seen corresponding path program 2 times [2022-11-20 11:33:16,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:33:16,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054676256] [2022-11-20 11:33:16,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:33:16,873 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 11:33:16,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:33:16,874 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:16,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:33:20,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:33:20,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:33:20,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:33:20,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:33:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 34661 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34661 trivial. 0 not checked. [2022-11-20 11:33:20,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:33:20,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:33:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054676256] [2022-11-20 11:33:20,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054676256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:20,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:20,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:33:20,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004458502] [2022-11-20 11:33:20,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:20,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:33:20,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:33:20,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:33:20,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:33:20,618 INFO L87 Difference]: Start difference. First operand 39227 states and 58841 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:33:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:22,719 INFO L93 Difference]: Finished difference Result 88031 states and 132135 transitions. [2022-11-20 11:33:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:33:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 1036 [2022-11-20 11:33:22,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:22,927 INFO L225 Difference]: With dead ends: 88031 [2022-11-20 11:33:22,927 INFO L226 Difference]: Without dead ends: 48941 [2022-11-20 11:33:23,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 1034 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 11:33:23,008 INFO L413 NwaCegarLoop]: 4365 mSDtfsCounter, 3812 mSDsluCounter, 3678 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3812 SdHoareTripleChecker+Valid, 8043 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:23,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3812 Valid, 8043 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:33:23,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48941 states. [2022-11-20 11:33:25,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48941 to 48931. [2022-11-20 11:33:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48931 states, 36702 states have (on average 1.4397852978039345) internal successors, (52843), 37202 states have internal predecessors, (52843), 10103 states have call successors, (10103), 2134 states have call predecessors, (10103), 2125 states have return successors, (10467), 10044 states have call predecessors, (10467), 10101 states have call successors, (10467) [2022-11-20 11:33:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48931 states to 48931 states and 73413 transitions. [2022-11-20 11:33:25,508 INFO L78 Accepts]: Start accepts. Automaton has 48931 states and 73413 transitions. Word has length 1036 [2022-11-20 11:33:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:25,509 INFO L495 AbstractCegarLoop]: Abstraction has 48931 states and 73413 transitions. [2022-11-20 11:33:25,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-11-20 11:33:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 48931 states and 73413 transitions. [2022-11-20 11:33:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2022-11-20 11:33:25,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:25,524 INFO L195 NwaCegarLoop]: trace histogram [195, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:25,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:33:25,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:25,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:25,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:25,726 INFO L85 PathProgramCache]: Analyzing trace with hash 785112796, now seen corresponding path program 1 times [2022-11-20 11:33:25,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:33:25,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440615193] [2022-11-20 11:33:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:25,729 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 11:33:25,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:33:25,730 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:25,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:33:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:32,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 7226 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:33:32,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:33:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 34707 backedges. 2016 proven. 28 refuted. 0 times theorem prover too weak. 32663 trivial. 0 not checked. [2022-11-20 11:33:33,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:33:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 34707 backedges. 0 proven. 1990 refuted. 0 times theorem prover too weak. 32717 trivial. 0 not checked. [2022-11-20 11:33:37,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:33:37,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440615193] [2022-11-20 11:33:37,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440615193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:33:37,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:33:37,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-20 11:33:37,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124963649] [2022-11-20 11:33:37,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:33:37,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:33:37,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:33:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:33:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:33:37,152 INFO L87 Difference]: Start difference. First operand 48931 states and 73413 transitions. Second operand has 23 states, 21 states have (on average 9.095238095238095) internal successors, (191), 23 states have internal predecessors, (191), 4 states have call successors, (124), 2 states have call predecessors, (124), 5 states have return successors, (120), 4 states have call predecessors, (120), 4 states have call successors, (120) [2022-11-20 11:33:45,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:45,187 INFO L93 Difference]: Finished difference Result 97869 states and 148029 transitions. [2022-11-20 11:33:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:33:45,188 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 9.095238095238095) internal successors, (191), 23 states have internal predecessors, (191), 4 states have call successors, (124), 2 states have call predecessors, (124), 5 states have return successors, (120), 4 states have call predecessors, (120), 4 states have call successors, (120) Word has length 1084 [2022-11-20 11:33:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:45,359 INFO L225 Difference]: With dead ends: 97869 [2022-11-20 11:33:45,359 INFO L226 Difference]: Without dead ends: 48951 [2022-11-20 11:33:45,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2173 GetRequests, 2145 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:33:45,454 INFO L413 NwaCegarLoop]: 3822 mSDtfsCounter, 30 mSDsluCounter, 53309 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 57131 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:45,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 57131 Invalid, 962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-20 11:33:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48951 states. [2022-11-20 11:33:47,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48951 to 48951. [2022-11-20 11:33:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48951 states, 36722 states have (on average 1.4395457763738357) internal successors, (52863), 37222 states have internal predecessors, (52863), 10103 states have call successors, (10103), 2134 states have call predecessors, (10103), 2125 states have return successors, (10467), 10044 states have call predecessors, (10467), 10101 states have call successors, (10467) [2022-11-20 11:33:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48951 states to 48951 states and 73433 transitions. [2022-11-20 11:33:47,879 INFO L78 Accepts]: Start accepts. Automaton has 48951 states and 73433 transitions. Word has length 1084 [2022-11-20 11:33:47,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:47,880 INFO L495 AbstractCegarLoop]: Abstraction has 48951 states and 73433 transitions. [2022-11-20 11:33:47,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 9.095238095238095) internal successors, (191), 23 states have internal predecessors, (191), 4 states have call successors, (124), 2 states have call predecessors, (124), 5 states have return successors, (120), 4 states have call predecessors, (120), 4 states have call successors, (120) [2022-11-20 11:33:47,881 INFO L276 IsEmpty]: Start isEmpty. Operand 48951 states and 73433 transitions. [2022-11-20 11:33:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2022-11-20 11:33:47,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:47,896 INFO L195 NwaCegarLoop]: trace histogram [216, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:47,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:33:48,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:48,097 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:33:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1716394148, now seen corresponding path program 2 times [2022-11-20 11:33:48,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:33:48,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146802517] [2022-11-20 11:33:48,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:33:48,101 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 11:33:48,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:33:48,102 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:33:48,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:33:52,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:33:52,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:33:52,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 2309 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:33:52,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:33:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 39705 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39705 trivial. 0 not checked. [2022-11-20 11:33:52,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:33:52,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:33:52,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146802517] [2022-11-20 11:33:52,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146802517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:52,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:52,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:33:52,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856728661] [2022-11-20 11:33:52,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:52,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:33:52,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:33:52,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:33:52,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:33:52,328 INFO L87 Difference]: Start difference. First operand 48951 states and 73433 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-11-20 11:33:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:55,818 INFO L93 Difference]: Finished difference Result 118495 states and 176221 transitions. [2022-11-20 11:33:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:33:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 1105 [2022-11-20 11:33:55,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:56,228 INFO L225 Difference]: With dead ends: 118495 [2022-11-20 11:33:56,228 INFO L226 Difference]: Without dead ends: 69681 [2022-11-20 11:33:56,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1103 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 11:33:56,316 INFO L413 NwaCegarLoop]: 4080 mSDtfsCounter, 1667 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 7703 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:56,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 7703 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:33:56,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69681 states. [2022-11-20 11:33:59,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69681 to 69671. [2022-11-20 11:33:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69671 states, 52060 states have (on average 1.426066077602766) internal successors, (74241), 52820 states have internal predecessors, (74241), 14063 states have call successors, (14063), 3564 states have call predecessors, (14063), 3547 states have return successors, (14651), 13966 states have call predecessors, (14651), 14061 states have call successors, (14651) [2022-11-20 11:34:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69671 states to 69671 states and 102955 transitions. [2022-11-20 11:34:00,151 INFO L78 Accepts]: Start accepts. Automaton has 69671 states and 102955 transitions. Word has length 1105 [2022-11-20 11:34:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:00,153 INFO L495 AbstractCegarLoop]: Abstraction has 69671 states and 102955 transitions. [2022-11-20 11:34:00,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2022-11-20 11:34:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 69671 states and 102955 transitions. [2022-11-20 11:34:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2022-11-20 11:34:00,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:00,170 INFO L195 NwaCegarLoop]: trace histogram [216, 33, 33, 33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:00,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:34:00,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:34:00,397 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:34:00,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1908609801, now seen corresponding path program 1 times [2022-11-20 11:34:00,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:34:00,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134970310] [2022-11-20 11:34:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:00,401 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 11:34:00,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:34:00,402 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:34:00,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2630c0-3c08-42f5-a425-eb2186e7ec3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 11:34:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:38,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 7653 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:34:38,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 39723 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39723 trivial. 0 not checked. [2022-11-20 11:34:38,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:38,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:34:38,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134970310] [2022-11-20 11:34:38,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134970310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:38,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:38,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:34:38,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676049534] [2022-11-20 11:34:38,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:38,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:34:38,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:34:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:34:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:34:38,311 INFO L87 Difference]: Start difference. First operand 69671 states and 102955 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73)