./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/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_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/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 32bit --witnessprinter.graph.data.programhash 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 --- 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 11:56:14,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:56:14,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:56:14,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:56:14,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:56:14,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:56:14,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:56:14,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:56:14,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:56:14,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:56:14,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:56:14,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:56:14,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:56:14,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:56:14,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:56:14,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:56:14,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:56:14,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:56:14,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:56:14,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:56:15,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:56:15,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:56:15,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:56:15,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:56:15,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:56:15,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:56:15,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:56:15,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:56:15,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:56:15,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:56:15,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:56:15,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:56:15,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:56:15,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:56:15,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:56:15,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:56:15,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:56:15,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:56:15,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:56:15,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:56:15,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:56:15,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:56:15,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:56:15,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:56:15,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:56:15,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:56:15,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:56:15,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:56:15,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:56:15,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:56:15,059 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:56:15,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:56:15,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:56:15,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:56:15,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:56:15,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:56:15,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:56:15,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:56:15,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:56:15,061 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:56:15,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:56:15,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:56:15,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:56:15,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:56:15,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:56:15,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:56:15,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:15,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:56:15,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:56:15,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:56:15,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:56:15,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:56:15,065 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:56:15,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:56:15,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:56:15,066 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_7d06aaa2-943c-4442-bd09-a227c07a6014/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 [2022-11-20 11:56:15,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:56:15,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:56:15,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:56:15,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:56:15,363 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:56:15,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2022-11-20 11:56:18,628 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:56:19,265 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:56:19,265 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2022-11-20 11:56:19,326 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data/e5021fd8d/7d8f718e67c3431499e21d7c461782b1/FLAG7a6b498d6 [2022-11-20 11:56:19,350 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data/e5021fd8d/7d8f718e67c3431499e21d7c461782b1 [2022-11-20 11:56:19,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:56:19,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:56:19,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:19,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:56:19,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:56:19,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:19" (1/1) ... [2022-11-20 11:56:19,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fa19c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:19, skipping insertion in model container [2022-11-20 11:56:19,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:19" (1/1) ... [2022-11-20 11:56:19,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:56:19,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:20,376 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_7d06aaa2-943c-4442-bd09-a227c07a6014/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c[77246,77259] [2022-11-20 11:56:20,616 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: Unknown Expression StructAccessExpression at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:407) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:545) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:399) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:545) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:399) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValueFromBinaryExpression(TypeSizes.java:639) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:615) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromIfThenElseExpression(TypeSizes.java:533) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:354) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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 11:56:20,623 INFO L158 Benchmark]: Toolchain (without parser) took 1263.01ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 99.9MB in the beginning and 142.4MB in the end (delta: -42.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2022-11-20 11:56:20,624 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:56:20,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1257.49ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 99.9MB in the beginning and 142.4MB in the end (delta: -42.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2022-11-20 11:56:20,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1257.49ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 99.9MB in the beginning and 142.4MB in the end (delta: -42.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: Unknown Expression StructAccessExpression de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: Unknown Expression StructAccessExpression: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:407) 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_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/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_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/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 32bit --witnessprinter.graph.data.programhash 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 --- 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 11:56:23,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:56:23,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:56:23,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:56:23,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:56:23,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:56:23,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:56:23,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:56:23,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:56:23,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:56:23,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:56:23,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:56:23,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:56:23,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:56:23,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:56:23,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:56:23,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:56:23,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:56:23,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:56:23,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:56:23,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:56:23,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:56:23,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:56:23,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:56:23,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:56:23,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:56:23,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:56:23,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:56:23,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:56:23,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:56:23,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:56:23,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:56:23,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:56:23,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:56:23,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:56:23,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:56:23,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:56:23,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:56:23,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:56:23,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:56:23,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:56:23,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 11:56:23,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:56:23,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:56:23,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:56:23,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:56:23,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:56:23,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:56:23,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:56:23,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:56:23,524 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:56:23,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:56:23,526 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:56:23,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:56:23,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:56:23,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:56:23,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:56:23,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:56:23,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:56:23,528 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:56:23,528 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:56:23,529 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:56:23,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:56:23,529 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:56:23,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:56:23,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:56:23,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:56:23,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:56:23,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:23,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:56:23,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:56:23,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:56:23,532 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:56:23,532 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:56:23,533 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:56:23,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:56:23,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:56:23,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:56:23,534 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_7d06aaa2-943c-4442-bd09-a227c07a6014/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 [2022-11-20 11:56:24,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:56:24,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:56:24,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:56:24,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:56:24,040 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:56:24,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2022-11-20 11:56:27,264 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:56:27,960 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:56:27,961 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2022-11-20 11:56:28,028 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data/eb68c2d6f/476566372993469fb3a8e5b191d1960e/FLAGc77977a55 [2022-11-20 11:56:28,053 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/data/eb68c2d6f/476566372993469fb3a8e5b191d1960e [2022-11-20 11:56:28,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:56:28,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:56:28,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:28,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:56:28,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:56:28,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:28" (1/1) ... [2022-11-20 11:56:28,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38106f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:28, skipping insertion in model container [2022-11-20 11:56:28,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:28" (1/1) ... [2022-11-20 11:56:28,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:56:28,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:29,231 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_7d06aaa2-943c-4442-bd09-a227c07a6014/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c[77246,77259] [2022-11-20 11:56:29,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:29,828 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:56:29,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:29,965 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_7d06aaa2-943c-4442-bd09-a227c07a6014/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c[77246,77259] [2022-11-20 11:56:30,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:30,295 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:56:30,348 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_7d06aaa2-943c-4442-bd09-a227c07a6014/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c[77246,77259] [2022-11-20 11:56:30,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:30,672 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:56:30,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30 WrapperNode [2022-11-20 11:56:30,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:30,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:30,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:56:30,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:56:30,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:30,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,053 INFO L138 Inliner]: procedures = 142, calls = 2895, calls flagged for inlining = 37, calls inlined = 26, statements flattened = 3030 [2022-11-20 11:56:31,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:31,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:56:31,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:56:31,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:56:31,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:56:31,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:56:31,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:56:31,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:56:31,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (1/1) ... [2022-11-20 11:56:31,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:31,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:56:31,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:56:31,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:56:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2022-11-20 11:56:31,454 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2022-11-20 11:56:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:56:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:56:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:56:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:56:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:56:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-20 11:56:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-20 11:56:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-11-20 11:56:31,456 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-11-20 11:56:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-11-20 11:56:31,456 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-11-20 11:56:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2022-11-20 11:56:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2022-11-20 11:56:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:56:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-20 11:56:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-20 11:56:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:56:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:56:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2022-11-20 11:56:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2022-11-20 11:56:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:56:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:56:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:56:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-20 11:56:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-20 11:56:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-11-20 11:56:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-11-20 11:56:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2022-11-20 11:56:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2022-11-20 11:56:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:56:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:56:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2022-11-20 11:56:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2022-11-20 11:56:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2022-11-20 11:56:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2022-11-20 11:56:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:56:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:56:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-20 11:56:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-20 11:56:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:56:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:56:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:56:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:56:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2022-11-20 11:56:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2022-11-20 11:56:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:56:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:56:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:56:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:56:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:56:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:56:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:56:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-11-20 11:56:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-11-20 11:56:31,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-20 11:56:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-20 11:56:31,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:56:31,469 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-11-20 11:56:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-11-20 11:56:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2022-11-20 11:56:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2022-11-20 11:56:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2022-11-20 11:56:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2022-11-20 11:56:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:56:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:56:32,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:56:32,212 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:56:32,305 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:32,330 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-20 11:56:32,331 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-20 11:56:32,336 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:33,074 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-11-20 11:56:33,074 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-11-20 11:56:33,203 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:33,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-11-20 11:56:33,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-11-20 11:56:35,480 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:35,539 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-11-20 11:56:35,539 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-11-20 11:56:35,540 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:35,541 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:35,541 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:36,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-11-20 11:56:36,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-11-20 11:56:36,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-11-20 11:56:36,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-11-20 11:56:36,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-11-20 11:56:36,738 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-11-20 11:56:36,741 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:36,750 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:36,752 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:42,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-11-20 11:56:42,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-11-20 11:56:42,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-11-20 11:56:42,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-11-20 11:56:42,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume !false; [2022-11-20 11:56:42,698 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume false; [2022-11-20 11:56:42,914 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,013 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-20 11:56:43,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-20 11:56:43,026 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,028 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,029 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,032 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,032 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,037 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,038 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:43,040 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:56:50,171 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !false; [2022-11-20 11:56:50,171 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume false; [2022-11-20 11:56:50,171 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume !false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume false; [2022-11-20 11:56:50,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-11-20 11:56:50,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-11-20 11:56:50,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume false; [2022-11-20 11:56:50,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##211: assume !false; [2022-11-20 11:56:50,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2022-11-20 11:56:50,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2022-11-20 11:56:50,206 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:56:50,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:56:50,235 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 11:56:50,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:50 BoogieIcfgContainer [2022-11-20 11:56:50,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:56:50,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:56:50,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:56:50,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:56:50,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:56:28" (1/3) ... [2022-11-20 11:56:50,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e680eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:50, skipping insertion in model container [2022-11-20 11:56:50,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:30" (2/3) ... [2022-11-20 11:56:50,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e680eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:50, skipping insertion in model container [2022-11-20 11:56:50,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:50" (3/3) ... [2022-11-20 11:56:50,255 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy.i.cil-3.c [2022-11-20 11:56:50,274 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:56:50,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:56:50,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:56:50,357 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;@29cc9823, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:56:50,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:56:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 580 states, 463 states have (on average 1.4989200863930885) internal successors, (694), 496 states have internal predecessors, (694), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) [2022-11-20 11:56:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 11:56:50,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:50,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 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 11:56:50,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:56:50,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:50,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1811520219, now seen corresponding path program 1 times [2022-11-20 11:56:50,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:50,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991039314] [2022-11-20 11:56:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:50,418 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 11:56:50,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:50,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:50,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:51,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:56:51,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:56:52,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:52,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:52,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991039314] [2022-11-20 11:56:52,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991039314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:52,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:52,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:56:52,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986467570] [2022-11-20 11:56:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:52,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:56:52,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:52,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:56:52,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:56:52,136 INFO L87 Difference]: Start difference. First operand has 580 states, 463 states have (on average 1.4989200863930885) internal successors, (694), 496 states have internal predecessors, (694), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:56:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:52,463 INFO L93 Difference]: Finished difference Result 1158 states and 1821 transitions. [2022-11-20 11:56:52,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:56:52,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-11-20 11:56:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:52,497 INFO L225 Difference]: With dead ends: 1158 [2022-11-20 11:56:52,499 INFO L226 Difference]: Without dead ends: 573 [2022-11-20 11:56:52,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:52,525 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 2 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:52,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2540 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:56:52,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-11-20 11:56:52,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-11-20 11:56:52,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 458 states have (on average 1.460698689956332) internal successors, (669), 489 states have internal predecessors, (669), 95 states have call successors, (95), 20 states have call predecessors, (95), 19 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 11:56:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 836 transitions. [2022-11-20 11:56:52,664 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 836 transitions. Word has length 26 [2022-11-20 11:56:52,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:52,665 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 836 transitions. [2022-11-20 11:56:52,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:56:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 836 transitions. [2022-11-20 11:56:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 11:56:52,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:52,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 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 11:56:52,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 11:56:52,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:52,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:56:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:52,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1842644027, now seen corresponding path program 1 times [2022-11-20 11:56:52,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:52,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915107271] [2022-11-20 11:56:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:52,889 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 11:56:52,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:52,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:52,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:54,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:56:54,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:56:54,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:56:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:56:54,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:54,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915107271] [2022-11-20 11:56:54,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915107271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:56:54,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:56:54,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 11:56:54,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892715076] [2022-11-20 11:56:54,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:56:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:56:54,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:56:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:56:54,694 INFO L87 Difference]: Start difference. First operand 573 states and 836 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:56:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:55,061 INFO L93 Difference]: Finished difference Result 1154 states and 1691 transitions. [2022-11-20 11:56:55,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:56:55,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2022-11-20 11:56:55,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:55,070 INFO L225 Difference]: With dead ends: 1154 [2022-11-20 11:56:55,070 INFO L226 Difference]: Without dead ends: 582 [2022-11-20 11:56:55,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:56:55,080 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 11 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:55,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3322 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:56:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-11-20 11:56:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2022-11-20 11:56:55,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 466 states have (on average 1.4592274678111588) internal successors, (680), 497 states have internal predecessors, (680), 95 states have call successors, (95), 21 states have call predecessors, (95), 20 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 11:56:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 847 transitions. [2022-11-20 11:56:55,131 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 847 transitions. Word has length 27 [2022-11-20 11:56:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:55,131 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 847 transitions. [2022-11-20 11:56:55,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:56:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 847 transitions. [2022-11-20 11:56:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:56:55,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:55,140 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 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 11:56:55,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:55,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:55,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:56:55,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1507820891, now seen corresponding path program 2 times [2022-11-20 11:56:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:55,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751626006] [2022-11-20 11:56:55,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:56:55,359 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 11:56:55,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:55,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:55,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:56,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:56:56,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:56:56,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 11:56:56,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 11:56:56,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:56,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:56,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751626006] [2022-11-20 11:56:56,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751626006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:56,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:56,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:56:56,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041102389] [2022-11-20 11:56:56,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:56,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:56:56,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:56,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:56:56,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:56,954 INFO L87 Difference]: Start difference. First operand 582 states and 847 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:56:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:57,860 INFO L93 Difference]: Finished difference Result 1149 states and 1670 transitions. [2022-11-20 11:56:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:56:57,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-11-20 11:56:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:57,869 INFO L225 Difference]: With dead ends: 1149 [2022-11-20 11:56:57,869 INFO L226 Difference]: Without dead ends: 585 [2022-11-20 11:56:57,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:56:57,882 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 824 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:57,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2519 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:56:57,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-11-20 11:56:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2022-11-20 11:56:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 468 states have (on average 1.4508547008547008) internal successors, (679), 499 states have internal predecessors, (679), 95 states have call successors, (95), 22 states have call predecessors, (95), 21 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 11:56:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 846 transitions. [2022-11-20 11:56:57,960 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 846 transitions. Word has length 30 [2022-11-20 11:56:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:57,961 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 846 transitions. [2022-11-20 11:56:57,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:56:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 846 transitions. [2022-11-20 11:56:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 11:56:57,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:57,965 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 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 11:56:57,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:58,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:58,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:56:58,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:58,182 INFO L85 PathProgramCache]: Analyzing trace with hash -671408719, now seen corresponding path program 1 times [2022-11-20 11:56:58,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:58,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422207934] [2022-11-20 11:56:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:58,184 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 11:56:58,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:58,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:58,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:56:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:59,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1543 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:56:59,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:56:59,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:00,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:00,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422207934] [2022-11-20 11:57:00,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422207934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:57:00,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:57:00,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 11:57:00,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516194354] [2022-11-20 11:57:00,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:57:00,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:57:00,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:57:00,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:57:00,159 INFO L87 Difference]: Start difference. First operand 585 states and 846 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:57:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:01,358 INFO L93 Difference]: Finished difference Result 1178 states and 1716 transitions. [2022-11-20 11:57:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:57:01,360 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-20 11:57:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:01,369 INFO L225 Difference]: With dead ends: 1178 [2022-11-20 11:57:01,370 INFO L226 Difference]: Without dead ends: 594 [2022-11-20 11:57:01,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:57:01,376 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 35 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4990 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:01,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4990 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:57:01,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-11-20 11:57:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2022-11-20 11:57:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 477 states have (on average 1.4423480083857443) internal successors, (688), 508 states have internal predecessors, (688), 95 states have call successors, (95), 22 states have call predecessors, (95), 21 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 11:57:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 855 transitions. [2022-11-20 11:57:01,440 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 855 transitions. Word has length 34 [2022-11-20 11:57:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:01,441 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 855 transitions. [2022-11-20 11:57:01,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:57:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 855 transitions. [2022-11-20 11:57:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 11:57:01,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:01,450 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 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 11:57:01,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:01,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:01,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:57:01,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:01,664 INFO L85 PathProgramCache]: Analyzing trace with hash -2058828431, now seen corresponding path program 2 times [2022-11-20 11:57:01,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:01,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705933384] [2022-11-20 11:57:01,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:57:01,666 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 11:57:01,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:01,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:01,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:03,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:57:03,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:57:03,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:03,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 11:57:03,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:03,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:03,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705933384] [2022-11-20 11:57:03,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705933384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:03,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:03,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:57:03,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487403241] [2022-11-20 11:57:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:03,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:03,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:57:03,278 INFO L87 Difference]: Start difference. First operand 594 states and 855 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:57:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:04,033 INFO L93 Difference]: Finished difference Result 612 states and 878 transitions. [2022-11-20 11:57:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:04,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2022-11-20 11:57:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:04,038 INFO L225 Difference]: With dead ends: 612 [2022-11-20 11:57:04,038 INFO L226 Difference]: Without dead ends: 594 [2022-11-20 11:57:04,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:57:04,040 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 761 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:04,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 2444 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:57:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-11-20 11:57:04,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2022-11-20 11:57:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 477 states have (on average 1.440251572327044) internal successors, (687), 508 states have internal predecessors, (687), 95 states have call successors, (95), 22 states have call predecessors, (95), 21 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 11:57:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 854 transitions. [2022-11-20 11:57:04,092 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 854 transitions. Word has length 40 [2022-11-20 11:57:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:04,093 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 854 transitions. [2022-11-20 11:57:04,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:57:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 854 transitions. [2022-11-20 11:57:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 11:57:04,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:04,094 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:04,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:04,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:04,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:57:04,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:04,322 INFO L85 PathProgramCache]: Analyzing trace with hash -587812934, now seen corresponding path program 1 times [2022-11-20 11:57:04,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:04,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181964052] [2022-11-20 11:57:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:04,324 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 11:57:04,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:04,326 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:04,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:05,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 11:57:05,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:06,088 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:06,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:07,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:07,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181964052] [2022-11-20 11:57:07,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181964052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:57:07,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:57:07,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-20 11:57:07,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578262838] [2022-11-20 11:57:07,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:57:07,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 11:57:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 11:57:07,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:57:07,244 INFO L87 Difference]: Start difference. First operand 594 states and 854 transitions. Second operand has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:57:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:11,206 INFO L93 Difference]: Finished difference Result 1205 states and 1753 transitions. [2022-11-20 11:57:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 11:57:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2022-11-20 11:57:11,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:11,211 INFO L225 Difference]: With dead ends: 1205 [2022-11-20 11:57:11,211 INFO L226 Difference]: Without dead ends: 612 [2022-11-20 11:57:11,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=890, Invalid=1866, Unknown=0, NotChecked=0, Total=2756 [2022-11-20 11:57:11,216 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 121 mSDsluCounter, 9987 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 10822 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:11,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 10822 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:57:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-11-20 11:57:11,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2022-11-20 11:57:11,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 495 states have (on average 1.4242424242424243) internal successors, (705), 526 states have internal predecessors, (705), 95 states have call successors, (95), 22 states have call predecessors, (95), 21 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 11:57:11,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 872 transitions. [2022-11-20 11:57:11,349 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 872 transitions. Word has length 43 [2022-11-20 11:57:11,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:11,350 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 872 transitions. [2022-11-20 11:57:11,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.9615384615384615) internal successors, (51), 26 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:57:11,351 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 872 transitions. [2022-11-20 11:57:11,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 11:57:11,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:11,352 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:11,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 11:57:11,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:11,575 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:57:11,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:11,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1168138182, now seen corresponding path program 2 times [2022-11-20 11:57:11,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:11,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807479171] [2022-11-20 11:57:11,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:57:11,578 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 11:57:11,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:11,579 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:11,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:13,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:57:13,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:57:13,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:57:13,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-20 11:57:13,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:13,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:13,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807479171] [2022-11-20 11:57:13,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807479171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:13,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:13,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:57:13,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249637714] [2022-11-20 11:57:13,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:13,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:57:13,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:13,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:57:13,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:57:13,202 INFO L87 Difference]: Start difference. First operand 612 states and 872 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:57:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:14,792 INFO L93 Difference]: Finished difference Result 1446 states and 2100 transitions. [2022-11-20 11:57:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:57:14,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2022-11-20 11:57:14,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:14,800 INFO L225 Difference]: With dead ends: 1446 [2022-11-20 11:57:14,800 INFO L226 Difference]: Without dead ends: 1020 [2022-11-20 11:57:14,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:57:14,803 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 1805 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:14,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 1519 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:57:14,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-11-20 11:57:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1001. [2022-11-20 11:57:14,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 833 states have (on average 1.4153661464585834) internal successors, (1179), 854 states have internal predecessors, (1179), 130 states have call successors, (130), 40 states have call predecessors, (130), 37 states have return successors, (142), 114 states have call predecessors, (142), 115 states have call successors, (142) [2022-11-20 11:57:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1451 transitions. [2022-11-20 11:57:14,947 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1451 transitions. Word has length 55 [2022-11-20 11:57:14,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:14,948 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1451 transitions. [2022-11-20 11:57:14,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:57:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1451 transitions. [2022-11-20 11:57:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 11:57:14,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:14,950 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:14,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:15,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:15,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:57:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:15,164 INFO L85 PathProgramCache]: Analyzing trace with hash 598833497, now seen corresponding path program 1 times [2022-11-20 11:57:15,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:15,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557186520] [2022-11-20 11:57:15,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:15,166 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 11:57:15,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:15,168 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:15,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:57:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:16,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1953 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 11:57:16,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:17,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:21,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557186520] [2022-11-20 11:57:21,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557186520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:57:21,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:57:21,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-11-20 11:57:21,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615282784] [2022-11-20 11:57:21,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:57:21,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-20 11:57:21,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:21,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-20 11:57:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2022-11-20 11:57:21,289 INFO L87 Difference]: Start difference. First operand 1001 states and 1451 transitions. Second operand has 50 states, 50 states have (on average 1.74) internal successors, (87), 50 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 11:57:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:37,456 INFO L93 Difference]: Finished difference Result 2073 states and 3059 transitions. [2022-11-20 11:57:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-11-20 11:57:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.74) internal successors, (87), 50 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2022-11-20 11:57:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:37,463 INFO L225 Difference]: With dead ends: 2073 [2022-11-20 11:57:37,463 INFO L226 Difference]: Without dead ends: 1049 [2022-11-20 11:57:37,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=3512, Invalid=7830, Unknown=0, NotChecked=0, Total=11342 [2022-11-20 11:57:37,472 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 356 mSDsluCounter, 20539 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 21364 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:37,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 21364 Invalid, 1922 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [347 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-20 11:57:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-11-20 11:57:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1049. [2022-11-20 11:57:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 881 states have (on average 1.3927355278093076) internal successors, (1227), 902 states have internal predecessors, (1227), 130 states have call successors, (130), 40 states have call predecessors, (130), 37 states have return successors, (142), 114 states have call predecessors, (142), 115 states have call successors, (142) [2022-11-20 11:57:37,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1499 transitions. [2022-11-20 11:57:37,621 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1499 transitions. Word has length 67 [2022-11-20 11:57:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:37,623 INFO L495 AbstractCegarLoop]: Abstraction has 1049 states and 1499 transitions. [2022-11-20 11:57:37,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.74) internal successors, (87), 50 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 11:57:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1499 transitions. [2022-11-20 11:57:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 11:57:37,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:37,626 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:37,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:37,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:37,847 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:57:37,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 487299673, now seen corresponding path program 2 times [2022-11-20 11:57:37,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:37,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843352526] [2022-11-20 11:57:37,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:57:37,850 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 11:57:37,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:37,852 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:37,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:57:39,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:57:39,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:57:39,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1711 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:57:39,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2022-11-20 11:57:39,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:39,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:39,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843352526] [2022-11-20 11:57:39,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843352526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:39,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:39,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:57:39,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597911415] [2022-11-20 11:57:39,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:39,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:39,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:39,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:39,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:39,509 INFO L87 Difference]: Start difference. First operand 1049 states and 1499 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:57:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:39,819 INFO L93 Difference]: Finished difference Result 1739 states and 2518 transitions. [2022-11-20 11:57:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:39,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 91 [2022-11-20 11:57:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:39,830 INFO L225 Difference]: With dead ends: 1739 [2022-11-20 11:57:39,830 INFO L226 Difference]: Without dead ends: 1720 [2022-11-20 11:57:39,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 11:57:39,834 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 775 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:39,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1402 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2022-11-20 11:57:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1671. [2022-11-20 11:57:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1408 states have (on average 1.4140625) internal successors, (1991), 1443 states have internal predecessors, (1991), 199 states have call successors, (199), 65 states have call predecessors, (199), 63 states have return successors, (243), 175 states have call predecessors, (243), 184 states have call successors, (243) [2022-11-20 11:57:39,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2433 transitions. [2022-11-20 11:57:39,999 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2433 transitions. Word has length 91 [2022-11-20 11:57:40,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:40,000 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2433 transitions. [2022-11-20 11:57:40,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:57:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2433 transitions. [2022-11-20 11:57:40,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 11:57:40,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:40,002 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:40,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:40,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:40,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:57:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:40,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1154444237, now seen corresponding path program 1 times [2022-11-20 11:57:40,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:40,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026990265] [2022-11-20 11:57:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:40,231 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 11:57:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:40,233 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:57:40,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:57:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:41,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 2157 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-20 11:57:41,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:44,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:57,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:57,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026990265] [2022-11-20 11:57:57,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026990265] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:57:57,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:57:57,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 98 [2022-11-20 11:57:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653503680] [2022-11-20 11:57:57,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:57:57,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-11-20 11:57:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:57,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-11-20 11:57:57,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=7009, Unknown=0, NotChecked=0, Total=9506 [2022-11-20 11:57:57,577 INFO L87 Difference]: Start difference. First operand 1671 states and 2433 transitions. Second operand has 98 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 98 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:59:21,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:21,473 INFO L93 Difference]: Finished difference Result 3629 states and 5420 transitions. [2022-11-20 11:59:21,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-11-20 11:59:21,474 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 98 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 89 [2022-11-20 11:59:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:21,486 INFO L225 Difference]: With dead ends: 3629 [2022-11-20 11:59:21,486 INFO L226 Difference]: Without dead ends: 1815 [2022-11-20 11:59:21,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3587 ImplicationChecksByTransitivity, 80.0s TimeCoverageRelationStatistics Valid=13940, Invalid=32070, Unknown=0, NotChecked=0, Total=46010 [2022-11-20 11:59:21,505 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 1353 mSDsluCounter, 39226 mSDsCounter, 0 mSdLazyCounter, 6070 mSolverCounterSat, 1333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 40063 SdHoareTripleChecker+Invalid, 7403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1333 IncrementalHoareTripleChecker+Valid, 6070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:21,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 40063 Invalid, 7403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1333 Valid, 6070 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-11-20 11:59:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-11-20 11:59:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2022-11-20 11:59:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1552 states have (on average 1.3756443298969072) internal successors, (2135), 1587 states have internal predecessors, (2135), 199 states have call successors, (199), 65 states have call predecessors, (199), 63 states have return successors, (243), 175 states have call predecessors, (243), 184 states have call successors, (243) [2022-11-20 11:59:21,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2577 transitions. [2022-11-20 11:59:21,742 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2577 transitions. Word has length 89 [2022-11-20 11:59:21,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:21,743 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2577 transitions. [2022-11-20 11:59:21,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 98 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:59:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2577 transitions. [2022-11-20 11:59:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-20 11:59:21,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:21,751 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:21,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:59:21,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:21,974 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:21,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:21,975 INFO L85 PathProgramCache]: Analyzing trace with hash 775105997, now seen corresponding path program 2 times [2022-11-20 11:59:21,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:21,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831121810] [2022-11-20 11:59:21,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:59:21,977 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 11:59:21,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:21,978 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:21,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:59:23,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:59:23,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:59:23,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:59:23,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:59:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2022-11-20 11:59:23,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:59:23,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:23,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831121810] [2022-11-20 11:59:23,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831121810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:23,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:23,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:59:23,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678902263] [2022-11-20 11:59:23,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:59:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:59:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:59:23,780 INFO L87 Difference]: Start difference. First operand 1815 states and 2577 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:59:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:24,389 INFO L93 Difference]: Finished difference Result 1860 states and 2642 transitions. [2022-11-20 11:59:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:59:24,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 137 [2022-11-20 11:59:24,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:24,398 INFO L225 Difference]: With dead ends: 1860 [2022-11-20 11:59:24,398 INFO L226 Difference]: Without dead ends: 1856 [2022-11-20 11:59:24,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 11:59:24,400 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 61 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:24,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1537 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:59:24,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2022-11-20 11:59:24,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1848. [2022-11-20 11:59:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1583 states have (on average 1.3771320277953254) internal successors, (2180), 1615 states have internal predecessors, (2180), 200 states have call successors, (200), 67 states have call predecessors, (200), 64 states have return successors, (244), 176 states have call predecessors, (244), 185 states have call successors, (244) [2022-11-20 11:59:24,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2624 transitions. [2022-11-20 11:59:24,570 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2624 transitions. Word has length 137 [2022-11-20 11:59:24,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:24,570 INFO L495 AbstractCegarLoop]: Abstraction has 1848 states and 2624 transitions. [2022-11-20 11:59:24,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 11:59:24,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2624 transitions. [2022-11-20 11:59:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 11:59:24,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:24,573 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:24,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 11:59:24,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:24,796 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:59:24,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash -56540046, now seen corresponding path program 1 times [2022-11-20 11:59:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:24,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185083729] [2022-11-20 11:59:24,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:24,799 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 11:59:24,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:24,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 11:59:24,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:59:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:26,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-20 11:59:26,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:59:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:59:38,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:00:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:00:25,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:25,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185083729] [2022-11-20 12:00:25,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185083729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:00:25,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:00:25,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 194 [2022-11-20 12:00:25,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792948881] [2022-11-20 12:00:25,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:00:25,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-11-20 12:00:25,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-11-20 12:00:25,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2022-11-20 12:00:25,029 INFO L87 Difference]: Start difference. First operand 1848 states and 2624 transitions. Second operand has 194 states, 194 states have (on average 1.1958762886597938) internal successors, (232), 194 states have internal predecessors, (232), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 12:10:03,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:03,447 INFO L93 Difference]: Finished difference Result 4655 states and 6906 transitions. [2022-11-20 12:10:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-20 12:10:03,448 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 1.1958762886597938) internal successors, (232), 194 states have internal predecessors, (232), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 139 [2022-11-20 12:10:03,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:03,467 INFO L225 Difference]: With dead ends: 4655 [2022-11-20 12:10:03,467 INFO L226 Difference]: Without dead ends: 2904 [2022-11-20 12:10:03,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22418 ImplicationChecksByTransitivity, 506.4s TimeCoverageRelationStatistics Valid=64697, Invalid=163309, Unknown=0, NotChecked=0, Total=228006 [2022-11-20 12:10:03,498 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 5106 mSDsluCounter, 82371 mSDsCounter, 0 mSdLazyCounter, 41806 mSolverCounterSat, 4883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5106 SdHoareTripleChecker+Valid, 83233 SdHoareTripleChecker+Invalid, 46689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 4883 IncrementalHoareTripleChecker+Valid, 41806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:03,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5106 Valid, 83233 Invalid, 46689 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [4883 Valid, 41806 Invalid, 0 Unknown, 0 Unchecked, 117.5s Time] [2022-11-20 12:10:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2022-11-20 12:10:03,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2528. [2022-11-20 12:10:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2259 states have (on average 1.4324922532093847) internal successors, (3236), 2291 states have internal predecessors, (3236), 200 states have call successors, (200), 71 states have call predecessors, (200), 68 states have return successors, (244), 176 states have call predecessors, (244), 185 states have call successors, (244) [2022-11-20 12:10:03,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 3680 transitions. [2022-11-20 12:10:03,909 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 3680 transitions. Word has length 139 [2022-11-20 12:10:03,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:03,910 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 3680 transitions. [2022-11-20 12:10:03,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 1.1958762886597938) internal successors, (232), 194 states have internal predecessors, (232), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 12:10:03,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 3680 transitions. [2022-11-20 12:10:03,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-20 12:10:03,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:03,915 INFO L195 NwaCegarLoop]: trace histogram [190, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:03,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:04,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:04,135 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:04,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash -357316494, now seen corresponding path program 2 times [2022-11-20 12:10:04,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:04,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469536561] [2022-11-20 12:10:04,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:10:04,140 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 12:10:04,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:04,141 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:04,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:06,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:10:06,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:10:06,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:10:06,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 18145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18145 trivial. 0 not checked. [2022-11-20 12:10:06,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:06,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:06,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469536561] [2022-11-20 12:10:06,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469536561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:06,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:06,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237007930] [2022-11-20 12:10:06,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:06,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:10:06,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:06,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:10:06,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:06,302 INFO L87 Difference]: Start difference. First operand 2528 states and 3680 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:10:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:06,831 INFO L93 Difference]: Finished difference Result 2644 states and 3839 transitions. [2022-11-20 12:10:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:10:06,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 235 [2022-11-20 12:10:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:06,843 INFO L225 Difference]: With dead ends: 2644 [2022-11-20 12:10:06,843 INFO L226 Difference]: Without dead ends: 2576 [2022-11-20 12:10:06,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 233 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 12:10:06,846 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 46 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:06,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1686 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:10:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-11-20 12:10:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2531. [2022-11-20 12:10:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2262 states have (on average 1.4323607427055702) internal successors, (3240), 2294 states have internal predecessors, (3240), 200 states have call successors, (200), 71 states have call predecessors, (200), 68 states have return successors, (244), 176 states have call predecessors, (244), 185 states have call successors, (244) [2022-11-20 12:10:07,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3684 transitions. [2022-11-20 12:10:07,229 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3684 transitions. Word has length 235 [2022-11-20 12:10:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:07,230 INFO L495 AbstractCegarLoop]: Abstraction has 2531 states and 3684 transitions. [2022-11-20 12:10:07,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:10:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3684 transitions. [2022-11-20 12:10:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-20 12:10:07,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:07,236 INFO L195 NwaCegarLoop]: trace histogram [190, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:07,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:07,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:07,451 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash 343748084, now seen corresponding path program 1 times [2022-11-20 12:10:07,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:07,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916118653] [2022-11-20 12:10:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:07,456 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 12:10:07,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:07,458 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:07,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d06aaa2-943c-4442-bd09-a227c07a6014/bin/uautomizer-ug76WZFUDN/mathsat -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 12:10:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:10,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 3748 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-20 12:10:10,300 INFO L286 TraceCheckSpWp]: Computing forward predicates...