./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- 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 11:57:39,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:57:39,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:57:39,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:57:39,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:57:39,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:57:39,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:57:39,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:57:39,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:57:39,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:57:39,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:57:39,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:57:39,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:57:39,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:57:39,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:57:39,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:57:39,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:57:39,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:57:39,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:57:39,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:57:39,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:57:39,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:57:39,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:57:39,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:57:39,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:57:39,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:57:39,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:57:39,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:57:39,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:57:39,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:57:39,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:57:39,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:57:39,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:57:40,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:57:40,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:57:40,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:57:40,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:57:40,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:57:40,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:57:40,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:57:40,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:57:40,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:57:40,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:57:40,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:57:40,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:57:40,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:57:40,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:57:40,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:57:40,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:57:40,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:57:40,036 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:57:40,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:57:40,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:57:40,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:57:40,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:57:40,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:57:40,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:57:40,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:57:40,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:57:40,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:57:40,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:57:40,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:57:40,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:57:40,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:40,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:57:40,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:57:40,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:57:40,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:57:40,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:57:40,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:57:40,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:57:40,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:57:40,043 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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-11-20 11:57:40,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:57:40,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:57:40,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:57:40,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:57:40,291 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:57:40,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 11:57:43,646 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:57:44,416 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:57:44,417 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 11:57:44,462 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data/c7acbddd3/a0507a3bc27c42efba943a2345b4e791/FLAGc9682ff95 [2022-11-20 11:57:44,488 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data/c7acbddd3/a0507a3bc27c42efba943a2345b4e791 [2022-11-20 11:57:44,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:57:44,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:57:44,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:44,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:57:44,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:57:44,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:44" (1/1) ... [2022-11-20 11:57:44,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e34dc4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:44, skipping insertion in model container [2022-11-20 11:57:44,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:44" (1/1) ... [2022-11-20 11:57:44,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:57:44,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:45,377 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 11:57:45,392 INFO L158 Benchmark]: Toolchain (without parser) took 891.60ms. Allocated memory is still 199.2MB. Free memory was 144.9MB in the beginning and 142.7MB in the end (delta: 2.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-20 11:57:45,392 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:57:45,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 885.19ms. Allocated memory is still 199.2MB. Free memory was 144.9MB in the beginning and 142.7MB in the end (delta: 2.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-20 11:57:45,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 885.19ms. Allocated memory is still 199.2MB. Free memory was 144.9MB in the beginning and 142.7MB in the end (delta: 2.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- 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 11:57:47,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:57:47,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:57:47,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:57:47,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:57:47,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:57:47,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:57:47,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:57:47,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:57:47,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:57:47,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:57:47,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:57:47,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:57:47,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:57:47,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:57:47,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:57:47,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:57:47,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:57:47,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:57:47,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:57:47,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:57:47,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:57:47,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:57:47,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:57:47,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:57:47,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:57:47,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:57:47,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:57:47,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:57:47,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:57:47,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:57:47,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:57:47,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:57:47,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:57:47,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:57:47,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:57:47,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:57:47,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:57:47,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:57:47,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:57:47,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:57:47,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:57:47,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:57:47,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:57:47,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:57:47,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:57:47,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:57:47,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:57:47,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:57:47,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:57:47,992 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:57:47,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:57:47,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:57:47,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:57:47,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:57:47,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:57:47,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:57:47,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:57:47,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:57:47,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:57:47,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:57:47,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:57:47,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:57:47,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:57:47,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:57:47,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:47,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:57:47,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:57:47,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:57:47,997 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:57:47,997 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:57:47,998 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:57:47,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:57:47,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:57:47,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:57:47,999 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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2022-11-20 11:57:48,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:57:48,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:57:48,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:57:48,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:57:48,475 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:57:48,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 11:57:51,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:57:52,709 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:57:52,710 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 11:57:52,774 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data/beadc324f/214545bad45742de8cbc894592dd9625/FLAG26640cace [2022-11-20 11:57:52,795 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/data/beadc324f/214545bad45742de8cbc894592dd9625 [2022-11-20 11:57:52,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:57:52,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:57:52,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:52,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:57:52,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:57:52,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:52" (1/1) ... [2022-11-20 11:57:52,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9eec0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:52, skipping insertion in model container [2022-11-20 11:57:52,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:52" (1/1) ... [2022-11-20 11:57:52,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:57:53,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:56,005 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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-11-20 11:57:56,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:56,132 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:57:56,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:56,589 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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-11-20 11:57:56,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:56,615 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:57:57,036 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_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2022-11-20 11:57:57,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:57,414 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:57:57,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57 WrapperNode [2022-11-20 11:57:57,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:57,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:57:57,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:57:57,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:57:57,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:57,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:57,740 INFO L138 Inliner]: procedures = 396, calls = 2311, calls flagged for inlining = 189, calls inlined = 143, statements flattened = 4429 [2022-11-20 11:57:57,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:57:57,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:57:57,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:57:57,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:57:57,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:57,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:57,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:57,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:57,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:58,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:58,060 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:58,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:58,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:57:58,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:57:58,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:57:58,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:57:58,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (1/1) ... [2022-11-20 11:57:58,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:58,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:57:58,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:57:58,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:57:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:57:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:57:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-20 11:57:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-20 11:57:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-20 11:57:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-20 11:57:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:57:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:57:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-20 11:57:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-20 11:57:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:57:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:57:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-20 11:57:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-20 11:57:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-20 11:57:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-20 11:57:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 11:57:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 11:57:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:57:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:57:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-20 11:57:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-20 11:57:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-20 11:57:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-20 11:57:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 11:57:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 11:57:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:57:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:57:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:57:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:57:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-20 11:57:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-20 11:57:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:57:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:57:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:57:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:57:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unmap_page_2 [2022-11-20 11:57:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unmap_page_2 [2022-11-20 11:57:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 11:57:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 11:57:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:57:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:57:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:57:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 11:57:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 11:57:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-20 11:57:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-20 11:57:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-20 11:57:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-20 11:57:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:57:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:57:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:57:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:57:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:57:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-20 11:57:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-20 11:57:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-20 11:57:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-20 11:57:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-20 11:57:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-20 11:57:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-20 11:57:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-20 11:57:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_macaddr [2022-11-20 11:57:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_macaddr [2022-11-20 11:57:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:57:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:57:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:57:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:57:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 11:57:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 11:57:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-20 11:57:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-20 11:57:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:57:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:57:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-20 11:57:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-20 11:57:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 11:57:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 11:57:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_features [2022-11-20 11:57:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_features [2022-11-20 11:57:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:57:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:57:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-20 11:57:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-20 11:57:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-20 11:57:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-20 11:57:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-20 11:57:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-20 11:57:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-20 11:57:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-20 11:57:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-20 11:57:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-20 11:57:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 11:57:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 11:57:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:57:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2022-11-20 11:57:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2022-11-20 11:57:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-20 11:57:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-20 11:57:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:57:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:57:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:57:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:57:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 11:57:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 11:57:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:57:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:57:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:57:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-20 11:57:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-20 11:57:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-20 11:57:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-20 11:57:58,241 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:57:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:57:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:57:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:57:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:57:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:57:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:57:58,245 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-20 11:57:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-20 11:57:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:57:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:57:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure jme_change_mtu [2022-11-20 11:57:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_change_mtu [2022-11-20 11:57:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-20 11:57:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-20 11:57:58,250 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-20 11:57:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-20 11:57:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:57:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 11:57:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 11:57:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-20 11:57:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-20 11:57:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-20 11:57:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-20 11:57:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 11:57:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 11:57:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:57:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-20 11:57:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-20 11:57:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:57:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:57:58,252 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-20 11:57:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-20 11:57:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:57:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:57:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:57:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:57:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure jme_ioctl [2022-11-20 11:57:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_ioctl [2022-11-20 11:57:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-20 11:57:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-20 11:57:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-20 11:57:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-20 11:57:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-20 11:57:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-20 11:57:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:57:58,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:57:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable_nosync [2022-11-20 11:57:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable_nosync [2022-11-20 11:57:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:57:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:57:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-20 11:57:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-20 11:57:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-20 11:57:58,255 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-20 11:57:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-20 11:57:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-20 11:57:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-20 11:57:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-20 11:57:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:57:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:57:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:57:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:57:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:57:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:57:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:57:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:57:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-20 11:57:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-20 11:57:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:57:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:57:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:57:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:57:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:57:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:57:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-20 11:57:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-20 11:57:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-20 11:57:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-20 11:57:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-20 11:57:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-20 11:57:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:57:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:57:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:57:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:57:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:57:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-20 11:57:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-20 11:57:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 11:57:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 11:57:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:57:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:57:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-20 11:57:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-20 11:57:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 11:57:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 11:57:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-20 11:57:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-20 11:57:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure jme_vlan_rx_register [2022-11-20 11:57:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_vlan_rx_register [2022-11-20 11:57:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-20 11:57:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-20 11:57:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:57:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:57:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:57:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:57:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-20 11:57:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-20 11:57:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-20 11:57:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-20 11:57:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-20 11:57:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-20 11:57:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:57:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:57:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-20 11:57:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-20 11:57:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-20 11:57:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-20 11:57:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:57:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:57:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:57:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-20 11:57:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-20 11:57:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:57:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:57:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:57:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-20 11:57:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-20 11:57:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-20 11:57:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-20 11:57:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:57:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:57:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:57:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:57:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-20 11:57:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-20 11:57:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 11:57:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 11:57:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-20 11:57:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-20 11:57:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 11:57:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 11:57:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 11:57:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 11:57:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-20 11:57:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-20 11:57:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-20 11:57:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-20 11:57:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-20 11:57:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-20 11:57:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-20 11:57:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-20 11:57:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fix_features [2022-11-20 11:57:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fix_features [2022-11-20 11:57:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-20 11:57:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-20 11:57:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-20 11:57:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-20 11:57:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 11:57:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 11:57:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:57:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:57:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_map_page_1 [2022-11-20 11:57:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_map_page_1 [2022-11-20 11:57:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-20 11:57:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-20 11:57:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-20 11:57:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-20 11:57:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-20 11:57:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-20 11:57:59,317 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:57:59,325 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:58:06,544 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:58:44,675 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:58:44,700 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:58:44,703 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 11:58:44,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:44 BoogieIcfgContainer [2022-11-20 11:58:44,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:58:44,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:58:44,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:58:44,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:58:44,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:57:52" (1/3) ... [2022-11-20 11:58:44,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb87079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:58:44, skipping insertion in model container [2022-11-20 11:58:44,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:57" (2/3) ... [2022-11-20 11:58:44,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb87079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:58:44, skipping insertion in model container [2022-11-20 11:58:44,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:44" (3/3) ... [2022-11-20 11:58:44,725 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 11:58:44,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:58:44,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:58:44,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:58:44,859 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;@5bc9d23a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:58:44,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:58:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 1926 states, 1257 states have (on average 1.313444709626094) internal successors, (1651), 1304 states have internal predecessors, (1651), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) [2022-11-20 11:58:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-20 11:58:44,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:44,892 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:44,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:58:44,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:44,898 INFO L85 PathProgramCache]: Analyzing trace with hash -530583902, now seen corresponding path program 1 times [2022-11-20 11:58:44,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:44,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360227041] [2022-11-20 11:58:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:44,927 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 11:58:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:44,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:44,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:46,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:58:46,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-20 11:58:46,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:58:46,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:46,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360227041] [2022-11-20 11:58:46,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360227041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:46,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:46,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:58:46,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270147426] [2022-11-20 11:58:46,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:46,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:58:46,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:46,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:58:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:58:46,640 INFO L87 Difference]: Start difference. First operand has 1926 states, 1257 states have (on average 1.313444709626094) internal successors, (1651), 1304 states have internal predecessors, (1651), 546 states have call successors, (546), 126 states have call predecessors, (546), 125 states have return successors, (540), 530 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:58:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:46,891 INFO L93 Difference]: Finished difference Result 3835 states and 5498 transitions. [2022-11-20 11:58:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:58:46,893 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 232 [2022-11-20 11:58:46,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:46,938 INFO L225 Difference]: With dead ends: 3835 [2022-11-20 11:58:46,938 INFO L226 Difference]: Without dead ends: 1898 [2022-11-20 11:58:46,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 231 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 11:58:46,955 INFO L413 NwaCegarLoop]: 2706 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, 2706 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 11:58:46,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2706 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:58:46,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-11-20 11:58:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1898. [2022-11-20 11:58:47,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1237 states have (on average 1.3047696038803558) internal successors, (1614), 1273 states have internal predecessors, (1614), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-11-20 11:58:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2683 transitions. [2022-11-20 11:58:47,150 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2683 transitions. Word has length 232 [2022-11-20 11:58:47,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:47,151 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2683 transitions. [2022-11-20 11:58:47,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:58:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2683 transitions. [2022-11-20 11:58:47,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-20 11:58:47,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:47,165 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:47,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:47,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:47,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:58:47,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1642585270, now seen corresponding path program 1 times [2022-11-20 11:58:47,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:47,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296334145] [2022-11-20 11:58:47,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:47,386 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 11:58:47,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:47,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:47,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:48,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:58:48,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-11-20 11:58:49,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:58:49,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:49,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296334145] [2022-11-20 11:58:49,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296334145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:49,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:49,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:58:49,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282628970] [2022-11-20 11:58:49,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:49,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:58:49,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:49,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:58:49,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:58:49,180 INFO L87 Difference]: Start difference. First operand 1898 states and 2683 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:58:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:49,891 INFO L93 Difference]: Finished difference Result 3778 states and 5343 transitions. [2022-11-20 11:58:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:58:49,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 232 [2022-11-20 11:58:49,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:49,910 INFO L225 Difference]: With dead ends: 3778 [2022-11-20 11:58:49,911 INFO L226 Difference]: Without dead ends: 1899 [2022-11-20 11:58:49,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 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 11:58:49,922 INFO L413 NwaCegarLoop]: 2675 mSDtfsCounter, 6 mSDsluCounter, 10680 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13355 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:49,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13355 Invalid, 60 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:58:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2022-11-20 11:58:50,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1899. [2022-11-20 11:58:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1238 states have (on average 1.3045234248788369) internal successors, (1615), 1274 states have internal predecessors, (1615), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-11-20 11:58:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2684 transitions. [2022-11-20 11:58:50,123 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2684 transitions. Word has length 232 [2022-11-20 11:58:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:50,126 INFO L495 AbstractCegarLoop]: Abstraction has 1899 states and 2684 transitions. [2022-11-20 11:58:50,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:58:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2684 transitions. [2022-11-20 11:58:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-20 11:58:50,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:50,131 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:50,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:50,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:50,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:58:50,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:50,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1816582201, now seen corresponding path program 1 times [2022-11-20 11:58:50,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:50,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096521963] [2022-11-20 11:58:50,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:50,361 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 11:58:50,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:50,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:50,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:51,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:58:51,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-20 11:58:52,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:58:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-11-20 11:58:53,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:53,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096521963] [2022-11-20 11:58:53,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096521963] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:58:53,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:58:53,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 11:58:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717063535] [2022-11-20 11:58:53,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:58:53,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:58:53,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:53,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:58:53,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:58:53,512 INFO L87 Difference]: Start difference. First operand 1899 states and 2684 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 11:58:54,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:54,584 INFO L93 Difference]: Finished difference Result 3780 states and 5345 transitions. [2022-11-20 11:58:54,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:58:54,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 237 [2022-11-20 11:58:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:54,602 INFO L225 Difference]: With dead ends: 3780 [2022-11-20 11:58:54,603 INFO L226 Difference]: Without dead ends: 1900 [2022-11-20 11:58:54,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:58:54,617 INFO L413 NwaCegarLoop]: 2675 mSDtfsCounter, 9 mSDsluCounter, 18686 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21361 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:54,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21361 Invalid, 111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:58:54,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-11-20 11:58:54,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1900. [2022-11-20 11:58:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1239 states have (on average 1.3042776432606942) internal successors, (1616), 1275 states have internal predecessors, (1616), 536 states have call successors, (536), 125 states have call predecessors, (536), 124 states have return successors, (533), 523 states have call predecessors, (533), 533 states have call successors, (533) [2022-11-20 11:58:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2685 transitions. [2022-11-20 11:58:54,722 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2685 transitions. Word has length 237 [2022-11-20 11:58:54,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:54,724 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2685 transitions. [2022-11-20 11:58:54,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 11:58:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2685 transitions. [2022-11-20 11:58:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-20 11:58:54,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:54,733 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:54,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:54,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:54,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:58:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash -216901546, now seen corresponding path program 2 times [2022-11-20 11:58:54,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:54,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689970749] [2022-11-20 11:58:54,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:58:54,964 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 11:58:54,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:54,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:55,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:56,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:58:56,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:58:56,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:58:56,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-11-20 11:58:56,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:58:56,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:56,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689970749] [2022-11-20 11:58:56,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689970749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:56,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:56,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:58:56,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279889645] [2022-11-20 11:58:56,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:56,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:58:56,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:56,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:58:56,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:58:56,280 INFO L87 Difference]: Start difference. First operand 1900 states and 2685 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:58:56,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:56,724 INFO L93 Difference]: Finished difference Result 5593 states and 7908 transitions. [2022-11-20 11:58:56,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:58:56,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 242 [2022-11-20 11:58:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:56,758 INFO L225 Difference]: With dead ends: 5593 [2022-11-20 11:58:56,758 INFO L226 Difference]: Without dead ends: 3731 [2022-11-20 11:58:56,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 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 11:58:56,772 INFO L413 NwaCegarLoop]: 3205 mSDtfsCounter, 2587 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:56,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 5869 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:58:56,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2022-11-20 11:58:56,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3728. [2022-11-20 11:58:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3728 states, 2435 states have (on average 1.3075975359342915) internal successors, (3184), 2505 states have internal predecessors, (3184), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-11-20 11:58:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 5271 transitions. [2022-11-20 11:58:57,027 INFO L78 Accepts]: Start accepts. Automaton has 3728 states and 5271 transitions. Word has length 242 [2022-11-20 11:58:57,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:57,028 INFO L495 AbstractCegarLoop]: Abstraction has 3728 states and 5271 transitions. [2022-11-20 11:58:57,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:58:57,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3728 states and 5271 transitions. [2022-11-20 11:58:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-20 11:58:57,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:57,036 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:57,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:57,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:57,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:58:57,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1928939537, now seen corresponding path program 1 times [2022-11-20 11:58:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:57,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325345937] [2022-11-20 11:58:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:57,263 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 11:58:57,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:57,264 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:57,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:58:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:58,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:58:58,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 208 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-11-20 11:58:59,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:59:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2022-11-20 11:59:01,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:01,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325345937] [2022-11-20 11:59:01,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325345937] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:59:01,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:59:01,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 11:59:01,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422243532] [2022-11-20 11:59:01,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:59:01,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:59:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:01,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:59:01,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:59:01,008 INFO L87 Difference]: Start difference. First operand 3728 states and 5271 transitions. Second operand has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 11:59:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:02,016 INFO L93 Difference]: Finished difference Result 7441 states and 10523 transitions. [2022-11-20 11:59:02,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:59:02,017 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 262 [2022-11-20 11:59:02,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:02,043 INFO L225 Difference]: With dead ends: 7441 [2022-11-20 11:59:02,043 INFO L226 Difference]: Without dead ends: 3730 [2022-11-20 11:59:02,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:59:02,063 INFO L413 NwaCegarLoop]: 2675 mSDtfsCounter, 10 mSDsluCounter, 13355 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 16030 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:02,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 16030 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:59:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-11-20 11:59:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2022-11-20 11:59:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 2437 states have (on average 1.3073450964300368) internal successors, (3186), 2507 states have internal predecessors, (3186), 1045 states have call successors, (1045), 248 states have call predecessors, (1045), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-11-20 11:59:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5273 transitions. [2022-11-20 11:59:02,342 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5273 transitions. Word has length 262 [2022-11-20 11:59:02,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:02,346 INFO L495 AbstractCegarLoop]: Abstraction has 3730 states and 5273 transitions. [2022-11-20 11:59:02,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.545454545454546) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 11:59:02,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5273 transitions. [2022-11-20 11:59:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-20 11:59:02,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:02,356 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:02,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:02,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:02,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:02,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1320784192, now seen corresponding path program 2 times [2022-11-20 11:59:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:02,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108041046] [2022-11-20 11:59:02,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:59:02,573 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 11:59:02,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:02,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:02,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:31,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:59:31,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:59:31,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:59:31,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:59:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-11-20 11:59:32,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:59:32,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:32,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108041046] [2022-11-20 11:59:32,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108041046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:32,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:32,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:59:32,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623947648] [2022-11-20 11:59:32,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:32,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:59:32,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:59:32,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:59:32,930 INFO L87 Difference]: Start difference. First operand 3730 states and 5273 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:59:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:33,292 INFO L93 Difference]: Finished difference Result 3732 states and 5274 transitions. [2022-11-20 11:59:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:59:33,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 267 [2022-11-20 11:59:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:33,327 INFO L225 Difference]: With dead ends: 3732 [2022-11-20 11:59:33,328 INFO L226 Difference]: Without dead ends: 3729 [2022-11-20 11:59:33,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 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 11:59:33,333 INFO L413 NwaCegarLoop]: 2680 mSDtfsCounter, 2623 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:33,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 2680 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:59:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2022-11-20 11:59:33,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3729. [2022-11-20 11:59:33,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3729 states, 2437 states have (on average 1.3069347558473534) internal successors, (3185), 2506 states have internal predecessors, (3185), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-11-20 11:59:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3729 states to 3729 states and 5271 transitions. [2022-11-20 11:59:33,621 INFO L78 Accepts]: Start accepts. Automaton has 3729 states and 5271 transitions. Word has length 267 [2022-11-20 11:59:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:33,622 INFO L495 AbstractCegarLoop]: Abstraction has 3729 states and 5271 transitions. [2022-11-20 11:59:33,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:59:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3729 states and 5271 transitions. [2022-11-20 11:59:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-20 11:59:33,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:33,633 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:33,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:33,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:33,847 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:33,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:33,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2006221114, now seen corresponding path program 1 times [2022-11-20 11:59:33,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:33,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518891852] [2022-11-20 11:59:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:33,851 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 11:59:33,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:33,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:33,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:35,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1695 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:59:35,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:59:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 236 proven. 6 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-11-20 11:59:36,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:59:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-20 11:59:38,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:38,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518891852] [2022-11-20 11:59:38,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518891852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:59:38,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:59:38,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 11:59:38,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369618269] [2022-11-20 11:59:38,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:59:38,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:59:38,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:38,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:59:38,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:59:38,226 INFO L87 Difference]: Start difference. First operand 3729 states and 5271 transitions. Second operand has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 11:59:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:39,655 INFO L93 Difference]: Finished difference Result 7443 states and 10523 transitions. [2022-11-20 11:59:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:59:39,656 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 268 [2022-11-20 11:59:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:39,680 INFO L225 Difference]: With dead ends: 7443 [2022-11-20 11:59:39,680 INFO L226 Difference]: Without dead ends: 3731 [2022-11-20 11:59:39,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:59:39,700 INFO L413 NwaCegarLoop]: 2673 mSDtfsCounter, 15 mSDsluCounter, 21350 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 24023 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:39,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 24023 Invalid, 144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:59:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2022-11-20 11:59:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3731. [2022-11-20 11:59:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 2439 states have (on average 1.3066830668306684) internal successors, (3187), 2508 states have internal predecessors, (3187), 1044 states have call successors, (1044), 248 states have call predecessors, (1044), 247 states have return successors, (1042), 1022 states have call predecessors, (1042), 1042 states have call successors, (1042) [2022-11-20 11:59:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5273 transitions. [2022-11-20 11:59:39,968 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5273 transitions. Word has length 268 [2022-11-20 11:59:39,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:39,969 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 5273 transitions. [2022-11-20 11:59:39,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.615384615384615) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 11:59:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5273 transitions. [2022-11-20 11:59:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-20 11:59:39,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:39,977 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:40,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:40,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:40,196 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2136079959, now seen corresponding path program 2 times [2022-11-20 11:59:40,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:40,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753354067] [2022-11-20 11:59:40,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:59:40,199 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 11:59:40,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:40,201 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:40,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:00:10,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:00:10,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:00:10,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:00:10,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-11-20 12:00:11,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:11,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:11,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753354067] [2022-11-20 12:00:11,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753354067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:11,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:11,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:00:11,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399795855] [2022-11-20 12:00:11,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:11,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:11,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:11,327 INFO L87 Difference]: Start difference. First operand 3731 states and 5273 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:00:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:11,923 INFO L93 Difference]: Finished difference Result 11101 states and 15715 transitions. [2022-11-20 12:00:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:11,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 273 [2022-11-20 12:00:11,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:12,043 INFO L225 Difference]: With dead ends: 11101 [2022-11-20 12:00:12,043 INFO L226 Difference]: Without dead ends: 7402 [2022-11-20 12:00:12,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:12,061 INFO L413 NwaCegarLoop]: 3285 mSDtfsCounter, 2610 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:12,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 5910 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:00:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7402 states. [2022-11-20 12:00:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7402 to 7397. [2022-11-20 12:00:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7397 states, 4838 states have (on average 1.3081852004960728) internal successors, (6329), 4975 states have internal predecessors, (6329), 2067 states have call successors, (2067), 493 states have call predecessors, (2067), 491 states have return successors, (2070), 2024 states have call predecessors, (2070), 2064 states have call successors, (2070) [2022-11-20 12:00:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7397 states to 7397 states and 10466 transitions. [2022-11-20 12:00:12,674 INFO L78 Accepts]: Start accepts. Automaton has 7397 states and 10466 transitions. Word has length 273 [2022-11-20 12:00:12,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:12,676 INFO L495 AbstractCegarLoop]: Abstraction has 7397 states and 10466 transitions. [2022-11-20 12:00:12,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:00:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7397 states and 10466 transitions. [2022-11-20 12:00:12,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-11-20 12:00:12,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:12,710 INFO L195 NwaCegarLoop]: trace histogram [20, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:12,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:12,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash -62210494, now seen corresponding path program 1 times [2022-11-20 12:00:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:12,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424087409] [2022-11-20 12:00:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:12,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:12,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:12,927 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:12,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:00:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:16,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2836 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:00:16,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-11-20 12:00:16,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:16,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:16,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424087409] [2022-11-20 12:00:16,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424087409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:16,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:16,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:00:16,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307113692] [2022-11-20 12:00:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:16,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:16,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:16,572 INFO L87 Difference]: Start difference. First operand 7397 states and 10466 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 12:00:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:18,032 INFO L93 Difference]: Finished difference Result 19739 states and 27882 transitions. [2022-11-20 12:00:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:18,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 472 [2022-11-20 12:00:18,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:18,110 INFO L225 Difference]: With dead ends: 19739 [2022-11-20 12:00:18,111 INFO L226 Difference]: Without dead ends: 12380 [2022-11-20 12:00:18,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:18,152 INFO L413 NwaCegarLoop]: 3035 mSDtfsCounter, 1835 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 5548 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:18,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 5548 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 12:00:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12380 states. [2022-11-20 12:00:19,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12380 to 12347. [2022-11-20 12:00:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12347 states, 8098 states have (on average 1.3119288713262534) internal successors, (10624), 8339 states have internal predecessors, (10624), 3403 states have call successors, (3403), 847 states have call predecessors, (3403), 845 states have return successors, (3406), 3324 states have call predecessors, (3406), 3400 states have call successors, (3406) [2022-11-20 12:00:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12347 states to 12347 states and 17433 transitions. [2022-11-20 12:00:19,194 INFO L78 Accepts]: Start accepts. Automaton has 12347 states and 17433 transitions. Word has length 472 [2022-11-20 12:00:19,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:19,195 INFO L495 AbstractCegarLoop]: Abstraction has 12347 states and 17433 transitions. [2022-11-20 12:00:19,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 12:00:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 12347 states and 17433 transitions. [2022-11-20 12:00:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2022-11-20 12:00:19,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:19,285 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:19,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:19,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:19,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:19,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1437110033, now seen corresponding path program 1 times [2022-11-20 12:00:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:19,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779995370] [2022-11-20 12:00:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:19,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:19,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:19,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:19,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:00:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:24,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 4897 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:00:24,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12457 trivial. 0 not checked. [2022-11-20 12:00:24,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:24,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:24,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779995370] [2022-11-20 12:00:24,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779995370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:24,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:24,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:00:24,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414000336] [2022-11-20 12:00:24,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:24,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:24,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:24,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:24,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:24,715 INFO L87 Difference]: Start difference. First operand 12347 states and 17433 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-11-20 12:00:26,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:26,537 INFO L93 Difference]: Finished difference Result 34979 states and 49221 transitions. [2022-11-20 12:00:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:26,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 1258 [2022-11-20 12:00:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:26,657 INFO L225 Difference]: With dead ends: 34979 [2022-11-20 12:00:26,657 INFO L226 Difference]: Without dead ends: 22670 [2022-11-20 12:00:26,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:26,705 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 2393 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:26,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 5902 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 12:00:26,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22670 states. [2022-11-20 12:00:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22670 to 22657. [2022-11-20 12:00:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22657 states, 14818 states have (on average 1.301255230125523) internal successors, (19282), 15271 states have internal predecessors, (19282), 6265 states have call successors, (6265), 1575 states have call predecessors, (6265), 1573 states have return successors, (6274), 6110 states have call predecessors, (6274), 6262 states have call successors, (6274) [2022-11-20 12:00:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22657 states to 22657 states and 31821 transitions. [2022-11-20 12:00:28,828 INFO L78 Accepts]: Start accepts. Automaton has 22657 states and 31821 transitions. Word has length 1258 [2022-11-20 12:00:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:28,829 INFO L495 AbstractCegarLoop]: Abstraction has 22657 states and 31821 transitions. [2022-11-20 12:00:28,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2022-11-20 12:00:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 22657 states and 31821 transitions. [2022-11-20 12:00:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2022-11-20 12:00:28,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:28,875 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:28,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:29,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:29,089 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:29,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash 576112173, now seen corresponding path program 1 times [2022-11-20 12:00:29,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:29,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155754338] [2022-11-20 12:00:29,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:29,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:29,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:29,096 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:29,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:00:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:34,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:00:34,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 13973 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 12891 trivial. 0 not checked. [2022-11-20 12:00:35,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:35,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:35,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155754338] [2022-11-20 12:00:35,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155754338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:35,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:35,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:00:35,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766423038] [2022-11-20 12:00:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:35,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:35,418 INFO L87 Difference]: Start difference. First operand 22657 states and 31821 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-11-20 12:00:37,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:37,990 INFO L93 Difference]: Finished difference Result 55915 states and 78633 transitions. [2022-11-20 12:00:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:37,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) Word has length 1400 [2022-11-20 12:00:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:38,156 INFO L225 Difference]: With dead ends: 55915 [2022-11-20 12:00:38,156 INFO L226 Difference]: Without dead ends: 33306 [2022-11-20 12:00:38,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1399 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:38,234 INFO L413 NwaCegarLoop]: 5006 mSDtfsCounter, 2389 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 7597 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:38,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 7597 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:00:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33306 states. [2022-11-20 12:00:40,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33306 to 33293. [2022-11-20 12:00:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33293 states, 21868 states have (on average 1.3000731662703493) internal successors, (28430), 22533 states have internal predecessors, (28430), 9125 states have call successors, (9125), 2301 states have call predecessors, (9125), 2299 states have return successors, (9140), 8894 states have call predecessors, (9140), 9122 states have call successors, (9140) [2022-11-20 12:00:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33293 states to 33293 states and 46695 transitions. [2022-11-20 12:00:40,807 INFO L78 Accepts]: Start accepts. Automaton has 33293 states and 46695 transitions. Word has length 1400 [2022-11-20 12:00:40,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:40,809 INFO L495 AbstractCegarLoop]: Abstraction has 33293 states and 46695 transitions. [2022-11-20 12:00:40,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2022-11-20 12:00:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 33293 states and 46695 transitions. [2022-11-20 12:00:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1425 [2022-11-20 12:00:40,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:40,894 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:40,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:41,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:41,108 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:41,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1121071214, now seen corresponding path program 1 times [2022-11-20 12:00:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:41,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162337154] [2022-11-20 12:00:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:41,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:41,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:41,116 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:41,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:00:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:46,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 5366 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:00:46,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13987 trivial. 0 not checked. [2022-11-20 12:00:47,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:47,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:47,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162337154] [2022-11-20 12:00:47,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162337154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:47,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:47,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:00:47,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634319742] [2022-11-20 12:00:47,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:47,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:00:47,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:00:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:00:47,137 INFO L87 Difference]: Start difference. First operand 33293 states and 46695 transitions. Second operand has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-11-20 12:00:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:50,520 INFO L93 Difference]: Finished difference Result 66698 states and 93755 transitions. [2022-11-20 12:00:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:00:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) Word has length 1424 [2022-11-20 12:00:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:50,701 INFO L225 Difference]: With dead ends: 66698 [2022-11-20 12:00:50,702 INFO L226 Difference]: Without dead ends: 33453 [2022-11-20 12:00:50,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1417 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:00:50,980 INFO L413 NwaCegarLoop]: 2674 mSDtfsCounter, 15 mSDsluCounter, 15991 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18665 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:50,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18665 Invalid, 168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 12:00:51,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33453 states. [2022-11-20 12:00:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33453 to 33341. [2022-11-20 12:00:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33341 states, 21900 states have (on average 1.299634703196347) internal successors, (28462), 22549 states have internal predecessors, (28462), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-11-20 12:00:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33341 states to 33341 states and 46759 transitions. [2022-11-20 12:00:53,760 INFO L78 Accepts]: Start accepts. Automaton has 33341 states and 46759 transitions. Word has length 1424 [2022-11-20 12:00:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:53,762 INFO L495 AbstractCegarLoop]: Abstraction has 33341 states and 46759 transitions. [2022-11-20 12:00:53,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (102), 2 states have call predecessors, (102), 3 states have return successors, (98), 4 states have call predecessors, (98), 3 states have call successors, (98) [2022-11-20 12:00:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 33341 states and 46759 transitions. [2022-11-20 12:00:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-11-20 12:00:53,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:53,826 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:53,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:54,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:54,043 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:54,044 INFO L85 PathProgramCache]: Analyzing trace with hash -415529477, now seen corresponding path program 1 times [2022-11-20 12:00:54,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:54,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591372605] [2022-11-20 12:00:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:54,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:54,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:54,050 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:54,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 12:00:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:59,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 5374 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:00:59,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 2191 proven. 0 refuted. 0 times theorem prover too weak. 11795 trivial. 0 not checked. [2022-11-20 12:00:59,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:59,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:59,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591372605] [2022-11-20 12:00:59,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591372605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:59,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:59,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:00:59,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121078942] [2022-11-20 12:00:59,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:59,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:59,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:59,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:59,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:59,633 INFO L87 Difference]: Start difference. First operand 33341 states and 46759 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-11-20 12:01:01,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:01,945 INFO L93 Difference]: Finished difference Result 66762 states and 93723 transitions. [2022-11-20 12:01:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:01:01,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1427 [2022-11-20 12:01:01,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:02,086 INFO L225 Difference]: With dead ends: 66762 [2022-11-20 12:01:02,086 INFO L226 Difference]: Without dead ends: 33469 [2022-11-20 12:01:02,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:02,183 INFO L413 NwaCegarLoop]: 2682 mSDtfsCounter, 3 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:02,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5357 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:01:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33469 states. [2022-11-20 12:01:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33469 to 33373. [2022-11-20 12:01:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33373 states, 21932 states have (on average 1.299927047236914) internal successors, (28510), 22581 states have internal predecessors, (28510), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-11-20 12:01:04,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33373 states to 33373 states and 46807 transitions. [2022-11-20 12:01:04,575 INFO L78 Accepts]: Start accepts. Automaton has 33373 states and 46807 transitions. Word has length 1427 [2022-11-20 12:01:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:04,577 INFO L495 AbstractCegarLoop]: Abstraction has 33373 states and 46807 transitions. [2022-11-20 12:01:04,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-11-20 12:01:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand 33373 states and 46807 transitions. [2022-11-20 12:01:04,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2022-11-20 12:01:04,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:04,651 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:04,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:01:04,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:04,867 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:04,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:04,868 INFO L85 PathProgramCache]: Analyzing trace with hash -565972295, now seen corresponding path program 1 times [2022-11-20 12:01:04,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:01:04,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779935517] [2022-11-20 12:01:04,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:04,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:04,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:01:04,874 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:01:04,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:10,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 5374 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:01:10,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:01:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 3430 proven. 0 refuted. 0 times theorem prover too weak. 10556 trivial. 0 not checked. [2022-11-20 12:01:10,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:01:10,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:01:10,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779935517] [2022-11-20 12:01:10,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779935517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:10,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:10,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:01:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408459298] [2022-11-20 12:01:10,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:10,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:01:10,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:01:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:01:10,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:10,781 INFO L87 Difference]: Start difference. First operand 33373 states and 46807 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-11-20 12:01:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:12,553 INFO L93 Difference]: Finished difference Result 66826 states and 93819 transitions. [2022-11-20 12:01:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:01:12,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 1427 [2022-11-20 12:01:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:12,665 INFO L225 Difference]: With dead ends: 66826 [2022-11-20 12:01:12,665 INFO L226 Difference]: Without dead ends: 33501 [2022-11-20 12:01:12,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1426 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:12,753 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 3 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:12,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5356 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:01:12,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33501 states. [2022-11-20 12:01:14,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33501 to 33405. [2022-11-20 12:01:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33405 states, 21964 states have (on average 1.3002185394281551) internal successors, (28558), 22613 states have internal predecessors, (28558), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-11-20 12:01:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33405 states to 33405 states and 46855 transitions. [2022-11-20 12:01:14,903 INFO L78 Accepts]: Start accepts. Automaton has 33405 states and 46855 transitions. Word has length 1427 [2022-11-20 12:01:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:14,904 INFO L495 AbstractCegarLoop]: Abstraction has 33405 states and 46855 transitions. [2022-11-20 12:01:14,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-11-20 12:01:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 33405 states and 46855 transitions. [2022-11-20 12:01:14,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2022-11-20 12:01:14,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:14,935 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 45, 45, 29, 29, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:15,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:15,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:15,137 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1193970443, now seen corresponding path program 1 times [2022-11-20 12:01:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:01:15,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535879701] [2022-11-20 12:01:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:15,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:15,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:01:15,141 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:01:15,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:24,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 5376 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:01:24,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:01:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 13295 trivial. 0 not checked. [2022-11-20 12:01:24,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:01:24,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:01:24,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535879701] [2022-11-20 12:01:24,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535879701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:24,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:24,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:01:24,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594589266] [2022-11-20 12:01:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:24,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:01:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:01:24,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:01:24,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:24,633 INFO L87 Difference]: Start difference. First operand 33405 states and 46855 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-20 12:01:27,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:01:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:29,015 INFO L93 Difference]: Finished difference Result 67026 states and 94135 transitions. [2022-11-20 12:01:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:01:29,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 1428 [2022-11-20 12:01:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:29,158 INFO L225 Difference]: With dead ends: 67026 [2022-11-20 12:01:29,158 INFO L226 Difference]: Without dead ends: 33669 [2022-11-20 12:01:29,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:29,263 INFO L413 NwaCegarLoop]: 2682 mSDtfsCounter, 7 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:29,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5357 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 12:01:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33669 states. [2022-11-20 12:01:30,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33669 to 33429. [2022-11-20 12:01:30,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33429 states, 21988 states have (on average 1.2998908495543025) internal successors, (28582), 22637 states have internal predecessors, (28582), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-11-20 12:01:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33429 states to 33429 states and 46879 transitions. [2022-11-20 12:01:31,119 INFO L78 Accepts]: Start accepts. Automaton has 33429 states and 46879 transitions. Word has length 1428 [2022-11-20 12:01:31,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:31,120 INFO L495 AbstractCegarLoop]: Abstraction has 33429 states and 46879 transitions. [2022-11-20 12:01:31,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-20 12:01:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 33429 states and 46879 transitions. [2022-11-20 12:01:31,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1479 [2022-11-20 12:01:31,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:31,159 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 47, 47, 31, 31, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:31,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:31,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:31,360 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash 49925208, now seen corresponding path program 1 times [2022-11-20 12:01:31,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:01:31,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011274256] [2022-11-20 12:01:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:31,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:31,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:01:31,365 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:01:31,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:41,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 5526 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:01:41,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:01:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 15461 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 14712 trivial. 0 not checked. [2022-11-20 12:01:41,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:01:41,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:01:41,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011274256] [2022-11-20 12:01:41,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011274256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:41,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:41,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:01:41,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110634251] [2022-11-20 12:01:41,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:41,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:01:41,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:01:41,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:01:41,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:41,186 INFO L87 Difference]: Start difference. First operand 33429 states and 46879 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-11-20 12:01:43,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:43,056 INFO L93 Difference]: Finished difference Result 66930 states and 93967 transitions. [2022-11-20 12:01:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:01:43,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 1478 [2022-11-20 12:01:43,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:43,179 INFO L225 Difference]: With dead ends: 66930 [2022-11-20 12:01:43,179 INFO L226 Difference]: Without dead ends: 33549 [2022-11-20 12:01:43,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1477 GetRequests, 1476 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:01:43,257 INFO L413 NwaCegarLoop]: 2680 mSDtfsCounter, 2 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5354 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:43,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5354 Invalid, 9 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:01:43,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33549 states. [2022-11-20 12:01:44,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33549 to 33453. [2022-11-20 12:01:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33453 states, 22012 states have (on average 1.2995638742504088) internal successors, (28606), 22661 states have internal predecessors, (28606), 9141 states have call successors, (9141), 2301 states have call predecessors, (9141), 2299 states have return successors, (9156), 8910 states have call predecessors, (9156), 9138 states have call successors, (9156) [2022-11-20 12:01:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33453 states to 33453 states and 46903 transitions. [2022-11-20 12:01:45,112 INFO L78 Accepts]: Start accepts. Automaton has 33453 states and 46903 transitions. Word has length 1478 [2022-11-20 12:01:45,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:45,113 INFO L495 AbstractCegarLoop]: Abstraction has 33453 states and 46903 transitions. [2022-11-20 12:01:45,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2022-11-20 12:01:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 33453 states and 46903 transitions. [2022-11-20 12:01:45,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-11-20 12:01:45,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:45,159 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 49, 49, 33, 33, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:45,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:45,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:45,373 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1701756440, now seen corresponding path program 1 times [2022-11-20 12:01:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:01:45,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510912985] [2022-11-20 12:01:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:45,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:45,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:01:45,378 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:01:45,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -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 12:01:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:55,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 5667 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:01:55,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:01:56,061 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 805 proven. 1 refuted. 0 times theorem prover too weak. 16243 trivial. 0 not checked. [2022-11-20 12:01:56,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:01:58,377 INFO L134 CoverageAnalysis]: Checked inductivity of 17049 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-11-20 12:01:58,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:01:58,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510912985] [2022-11-20 12:01:58,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510912985] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:01:58,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:01:58,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 12:01:58,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721662251] [2022-11-20 12:01:58,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:01:58,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:01:58,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:01:58,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:01:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:01:58,388 INFO L87 Difference]: Start difference. First operand 33453 states and 46903 transitions. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-11-20 12:02:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:00,954 INFO L93 Difference]: Finished difference Result 67218 states and 94399 transitions. [2022-11-20 12:02:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:02:00,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) Word has length 1528 [2022-11-20 12:02:00,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:01,064 INFO L225 Difference]: With dead ends: 67218 [2022-11-20 12:02:01,064 INFO L226 Difference]: Without dead ends: 33813 [2022-11-20 12:02:01,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3055 GetRequests, 3050 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:02:01,137 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 8 mSDsluCounter, 10692 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13378 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:01,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 13378 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:02:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33813 states. [2022-11-20 12:02:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33813 to 33813. [2022-11-20 12:02:02,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33813 states, 22228 states have (on average 1.296652870253734) internal successors, (28822), 22877 states have internal predecessors, (28822), 9285 states have call successors, (9285), 2301 states have call predecessors, (9285), 2299 states have return successors, (9300), 9054 states have call predecessors, (9300), 9282 states have call successors, (9300) [2022-11-20 12:02:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33813 states to 33813 states and 47407 transitions. [2022-11-20 12:02:02,922 INFO L78 Accepts]: Start accepts. Automaton has 33813 states and 47407 transitions. Word has length 1528 [2022-11-20 12:02:02,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:02,925 INFO L495 AbstractCegarLoop]: Abstraction has 33813 states and 47407 transitions. [2022-11-20 12:02:02,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 4 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (110), 4 states have call predecessors, (110), 4 states have call successors, (110) [2022-11-20 12:02:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 33813 states and 47407 transitions. [2022-11-20 12:02:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1675 [2022-11-20 12:02:02,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:02,976 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 55, 55, 39, 39, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:03,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-11-20 12:02:03,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:03,177 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:03,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:03,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1166244952, now seen corresponding path program 1 times [2022-11-20 12:02:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:03,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064557246] [2022-11-20 12:02:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:03,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:03,185 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:03,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 12:02:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:15,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 6082 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:02:15,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 972 proven. 1 refuted. 0 times theorem prover too weak. 21538 trivial. 0 not checked. [2022-11-20 12:02:15,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22511 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22510 trivial. 0 not checked. [2022-11-20 12:02:18,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:18,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064557246] [2022-11-20 12:02:18,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064557246] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:18,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:18,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 12:02:18,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30696181] [2022-11-20 12:02:18,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:18,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:02:18,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:02:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:02:18,009 INFO L87 Difference]: Start difference. First operand 33813 states and 47407 transitions. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 12:02:20,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:22,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:24,286 INFO L93 Difference]: Finished difference Result 69522 states and 97639 transitions. [2022-11-20 12:02:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:02:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 1674 [2022-11-20 12:02:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:24,421 INFO L225 Difference]: With dead ends: 69522 [2022-11-20 12:02:24,421 INFO L226 Difference]: Without dead ends: 35757 [2022-11-20 12:02:24,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3347 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:02:24,496 INFO L413 NwaCegarLoop]: 2699 mSDtfsCounter, 28 mSDsluCounter, 10695 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 13394 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:24,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 13394 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 12:02:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35757 states. [2022-11-20 12:02:26,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35757 to 35757. [2022-11-20 12:02:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35757 states, 23452 states have (on average 1.2842401500938085) internal successors, (30118), 24101 states have internal predecessors, (30118), 10005 states have call successors, (10005), 2301 states have call predecessors, (10005), 2299 states have return successors, (10020), 9774 states have call predecessors, (10020), 10002 states have call successors, (10020) [2022-11-20 12:02:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35757 states to 35757 states and 50143 transitions. [2022-11-20 12:02:26,478 INFO L78 Accepts]: Start accepts. Automaton has 35757 states and 50143 transitions. Word has length 1674 [2022-11-20 12:02:26,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:26,483 INFO L495 AbstractCegarLoop]: Abstraction has 35757 states and 50143 transitions. [2022-11-20 12:02:26,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 4 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2022-11-20 12:02:26,484 INFO L276 IsEmpty]: Start isEmpty. Operand 35757 states and 50143 transitions. [2022-11-20 12:02:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2418 [2022-11-20 12:02:26,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:26,537 INFO L195 NwaCegarLoop]: trace histogram [138, 138, 85, 85, 69, 69, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:02:26,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-11-20 12:02:26,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:26,909 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:26,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:26,910 INFO L85 PathProgramCache]: Analyzing trace with hash -176700726, now seen corresponding path program 1 times [2022-11-20 12:02:26,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:26,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22498195] [2022-11-20 12:02:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:26,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:26,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:26,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:26,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 12:02:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:49,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 8210 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:02:49,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 1812 proven. 574 refuted. 0 times theorem prover too weak. 63072 trivial. 0 not checked. [2022-11-20 12:02:50,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:02:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 65458 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 64884 trivial. 0 not checked. [2022-11-20 12:02:55,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:55,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22498195] [2022-11-20 12:02:55,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22498195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:02:55,134 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:02:55,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-20 12:02:55,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347091802] [2022-11-20 12:02:55,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:02:55,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:02:55,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:55,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:02:55,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:02:55,140 INFO L87 Difference]: Start difference. First operand 35757 states and 50143 transitions. Second operand has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) [2022-11-20 12:02:57,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:59,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:03:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:02,891 INFO L93 Difference]: Finished difference Result 74058 states and 104047 transitions. [2022-11-20 12:03:02,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:03:02,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) Word has length 2417 [2022-11-20 12:03:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:03,129 INFO L225 Difference]: With dead ends: 74058 [2022-11-20 12:03:03,129 INFO L226 Difference]: Without dead ends: 38349 [2022-11-20 12:03:03,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4834 GetRequests, 4822 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:03:03,215 INFO L413 NwaCegarLoop]: 2742 mSDtfsCounter, 56 mSDsluCounter, 16192 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 18934 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:03,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 18934 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 200 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-11-20 12:03:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38349 states. [2022-11-20 12:03:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38349 to 38349. [2022-11-20 12:03:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38349 states, 25084 states have (on average 1.2695742305852336) internal successors, (31846), 25733 states have internal predecessors, (31846), 10965 states have call successors, (10965), 2301 states have call predecessors, (10965), 2299 states have return successors, (10980), 10734 states have call predecessors, (10980), 10962 states have call successors, (10980) [2022-11-20 12:03:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38349 states to 38349 states and 53791 transitions. [2022-11-20 12:03:05,633 INFO L78 Accepts]: Start accepts. Automaton has 38349 states and 53791 transitions. Word has length 2417 [2022-11-20 12:03:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:05,636 INFO L495 AbstractCegarLoop]: Abstraction has 38349 states and 53791 transitions. [2022-11-20 12:03:05,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.666666666666668) internal successors, (284), 12 states have internal predecessors, (284), 10 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (136), 10 states have call predecessors, (136), 10 states have call successors, (136) [2022-11-20 12:03:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 38349 states and 53791 transitions. [2022-11-20 12:03:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3405 [2022-11-20 12:03:05,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:05,935 INFO L195 NwaCegarLoop]: trace histogram [218, 218, 125, 125, 109, 109, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 32, 32, 32, 32, 32, 32, 32, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:03:06,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:03:06,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:03:06,159 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:06,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1065212043, now seen corresponding path program 2 times [2022-11-20 12:03:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:06,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645030015] [2022-11-20 12:03:06,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:03:06,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:03:06,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:06,167 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:03:06,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e156cccd-aa2b-4f31-93ba-fcb286fe9b28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process