./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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 986945cc1d8674c803a19893f7d2aec71de46e5693e78eba56c7bdad24c6e341 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:57:12,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:57:12,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:57:12,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:57:12,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:57:12,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:57:12,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:57:12,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:57:12,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:57:12,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:57:12,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:57:12,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:57:12,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:57:12,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:57:12,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:57:12,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:57:12,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:57:12,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:57:12,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:57:12,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:57:12,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:57:12,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:57:12,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:57:12,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:57:12,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:57:12,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:57:12,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:57:12,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:57:12,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:57:12,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:57:12,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:57:12,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:57:12,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:57:12,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:57:12,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:57:12,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:57:12,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:57:12,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:57:12,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:57:12,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:57:12,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:57:12,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:57:12,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:57:12,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:57:12,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:57:12,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:57:12,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:57:12,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:57:12,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:57:12,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:57:12,200 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:57:12,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:57:12,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:57:12,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:57:12,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:57:12,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:57:12,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:57:12,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:57:12,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:57:12,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:57:12,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:57:12,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:57:12,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:57:12,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:57:12,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:57:12,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:57:12,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:12,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:57:12,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:57:12,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:57:12,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:57:12,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:57:12,206 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:57:12,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:57:12,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:57:12,207 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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 986945cc1d8674c803a19893f7d2aec71de46e5693e78eba56c7bdad24c6e341 [2022-11-20 10:57:12,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:57:12,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:57:12,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:57:12,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:57:12,569 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:57:12,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2022-11-20 10:57:15,860 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:57:16,449 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:57:16,450 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2022-11-20 10:57:16,522 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data/23e95a6f2/8fd5bbcd4073449ead52d1ba8935fe9f/FLAG459bd77c6 [2022-11-20 10:57:16,541 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data/23e95a6f2/8fd5bbcd4073449ead52d1ba8935fe9f [2022-11-20 10:57:16,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:57:16,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:57:16,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:16,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:57:16,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:57:16,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:16" (1/1) ... [2022-11-20 10:57:16,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21df0be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:16, skipping insertion in model container [2022-11-20 10:57:16,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:16" (1/1) ... [2022-11-20 10:57:16,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:57:16,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:17,614 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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c[76734,76747] [2022-11-20 10:57:17,882 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 10:57:17,904 INFO L158 Benchmark]: Toolchain (without parser) took 1353.21ms. Allocated memory is still 165.7MB. Free memory was 117.3MB in the beginning and 103.3MB in the end (delta: 14.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 10:57:17,904 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:57:17,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1350.54ms. Allocated memory is still 165.7MB. Free memory was 116.8MB in the beginning and 103.3MB in the end (delta: 13.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:17,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1350.54ms. Allocated memory is still 165.7MB. Free memory was 116.8MB in the beginning and 103.3MB in the end (delta: 13.5MB). Peak memory consumption was 23.1MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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 986945cc1d8674c803a19893f7d2aec71de46e5693e78eba56c7bdad24c6e341 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:57:20,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:57:20,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:57:20,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:57:20,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:57:20,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:57:20,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:57:20,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:57:20,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:57:20,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:57:20,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:57:20,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:57:20,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:57:20,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:57:20,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:57:20,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:57:20,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:57:20,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:57:20,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:57:20,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:57:20,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:57:20,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:57:20,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:57:20,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:57:20,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:57:20,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:57:20,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:57:20,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:57:20,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:57:20,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:57:20,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:57:20,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:57:20,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:57:20,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:57:20,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:57:20,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:57:20,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:57:20,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:57:20,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:57:20,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:57:20,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:57:20,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 10:57:20,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:57:20,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:57:20,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:57:20,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:57:20,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:57:20,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:57:20,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:57:20,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:57:20,634 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:57:20,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:57:20,635 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:57:20,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:57:20,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:57:20,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:57:20,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:57:20,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:57:20,637 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:57:20,637 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:57:20,637 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:57:20,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:57:20,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:57:20,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:57:20,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:57:20,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:57:20,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:57:20,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:57:20,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:20,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:57:20,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:57:20,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:57:20,641 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:57:20,641 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:57:20,641 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:57:20,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:57:20,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:57:20,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:57:20,642 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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 986945cc1d8674c803a19893f7d2aec71de46e5693e78eba56c7bdad24c6e341 [2022-11-20 10:57:21,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:57:21,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:57:21,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:57:21,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:57:21,141 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:57:21,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2022-11-20 10:57:24,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:57:25,288 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:57:25,290 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2022-11-20 10:57:25,343 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data/74136c6d3/3ebe113dfdd6487f9302c4ffd11e96c6/FLAG0137b7b27 [2022-11-20 10:57:25,374 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/data/74136c6d3/3ebe113dfdd6487f9302c4ffd11e96c6 [2022-11-20 10:57:25,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:57:25,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:57:25,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:25,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:57:25,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:57:25,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:25" (1/1) ... [2022-11-20 10:57:25,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660de81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:25, skipping insertion in model container [2022-11-20 10:57:25,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:25" (1/1) ... [2022-11-20 10:57:25,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:57:25,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:26,574 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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c[76734,76747] [2022-11-20 10:57:27,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:27,268 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:57:27,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:27,434 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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c[76734,76747] [2022-11-20 10:57:27,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:27,772 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:57:27,838 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_c3ce3782-18b2-4aef-8fc5-ee12b8291308/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c[76734,76747] [2022-11-20 10:57:28,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:28,304 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:57:28,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28 WrapperNode [2022-11-20 10:57:28,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:28,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:28,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:57:28,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:57:28,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,659 INFO L138 Inliner]: procedures = 140, calls = 2882, calls flagged for inlining = 36, calls inlined = 25, statements flattened = 2987 [2022-11-20 10:57:28,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:28,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:57:28,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:57:28,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:57:28,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:57:28,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:57:28,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:57:28,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:57:28,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (1/1) ... [2022-11-20 10:57:28,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:29,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:29,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:29,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:57:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2022-11-20 10:57:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2022-11-20 10:57:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:57:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:57:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:57:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:57:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:57:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-20 10:57:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-20 10:57:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:57:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:57:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-11-20 10:57:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-11-20 10:57:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-11-20 10:57:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-11-20 10:57:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2022-11-20 10:57:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2022-11-20 10:57:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:57:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-20 10:57:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-20 10:57:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:57:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:57:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2022-11-20 10:57:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2022-11-20 10:57:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:57:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:57:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:57:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-20 10:57:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-20 10:57:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-11-20 10:57:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-11-20 10:57:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2022-11-20 10:57:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2022-11-20 10:57:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:57:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:57:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2022-11-20 10:57:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2022-11-20 10:57:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2022-11-20 10:57:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2022-11-20 10:57:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:57:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:57:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-20 10:57:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-20 10:57:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:57:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:57:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:57:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:57:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2022-11-20 10:57:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2022-11-20 10:57:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:57:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:57:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:57:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:57:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:57:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:57:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:57:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-11-20 10:57:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-11-20 10:57:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:57:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2022-11-20 10:57:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2022-11-20 10:57:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2022-11-20 10:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2022-11-20 10:57:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:57:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:57:29,852 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:57:29,868 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:57:29,967 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:30,006 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-20 10:57:30,007 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-20 10:57:30,011 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:30,745 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-11-20 10:57:30,745 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-11-20 10:57:30,931 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:30,979 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-11-20 10:57:30,979 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-11-20 10:57:33,175 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:33,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-11-20 10:57:33,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-11-20 10:57:33,261 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:33,262 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:33,263 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:34,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-11-20 10:57:34,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-11-20 10:57:34,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-11-20 10:57:34,662 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-11-20 10:57:34,663 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-11-20 10:57:34,663 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-11-20 10:57:34,667 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:34,676 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:34,679 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,407 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-11-20 10:57:38,407 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-11-20 10:57:38,407 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-11-20 10:57:38,408 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-11-20 10:57:38,408 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume !false; [2022-11-20 10:57:38,408 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume false; [2022-11-20 10:57:38,581 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,695 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-20 10:57:38,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-20 10:57:38,714 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,715 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,717 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,719 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,720 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,724 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,725 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:38,727 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 10:57:45,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !false; [2022-11-20 10:57:45,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume false; [2022-11-20 10:57:45,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume false; [2022-11-20 10:57:45,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2022-11-20 10:57:45,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2022-11-20 10:57:45,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume !false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-11-20 10:57:45,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume false; [2022-11-20 10:57:45,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##211: assume !false; [2022-11-20 10:57:45,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2022-11-20 10:57:45,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2022-11-20 10:57:46,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:57:46,056 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:57:46,056 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 10:57:46,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:46 BoogieIcfgContainer [2022-11-20 10:57:46,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:57:46,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:57:46,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:57:46,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:57:46,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:57:25" (1/3) ... [2022-11-20 10:57:46,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57165524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:46, skipping insertion in model container [2022-11-20 10:57:46,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:28" (2/3) ... [2022-11-20 10:57:46,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57165524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:46, skipping insertion in model container [2022-11-20 10:57:46,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:46" (3/3) ... [2022-11-20 10:57:46,075 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy.i.cil-1.c [2022-11-20 10:57:46,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:57:46,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:57:46,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:57:46,230 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;@1cb668c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:57:46,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:57:46,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 564 states, 453 states have (on average 1.5011037527593818) internal successors, (680), 486 states have internal predecessors, (680), 90 states have call successors, (90), 19 states have call predecessors, (90), 19 states have return successors, (90), 84 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-20 10:57:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:57:46,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:46,249 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 10:57:46,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:46,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash -197079634, now seen corresponding path program 1 times [2022-11-20 10:57:46,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:46,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909940806] [2022-11-20 10:57:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:46,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:46,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:57:46,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:57:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:47,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:57:47,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:47,891 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 10:57:47,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:57:47,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:57:47,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909940806] [2022-11-20 10:57:47,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909940806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:47,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:47,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:57:47,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926042168] [2022-11-20 10:57:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:47,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:57:47,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:57:47,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:57:47,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:57:47,976 INFO L87 Difference]: Start difference. First operand has 564 states, 453 states have (on average 1.5011037527593818) internal successors, (680), 486 states have internal predecessors, (680), 90 states have call successors, (90), 19 states have call predecessors, (90), 19 states have return successors, (90), 84 states have call predecessors, (90), 90 states have call successors, (90) 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 10:57:48,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:48,355 INFO L93 Difference]: Finished difference Result 1126 states and 1767 transitions. [2022-11-20 10:57:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:57:48,358 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 10:57:48,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:57:48,377 INFO L225 Difference]: With dead ends: 1126 [2022-11-20 10:57:48,377 INFO L226 Difference]: Without dead ends: 557 [2022-11-20 10:57:48,389 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 10:57:48,393 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 2 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:57:48,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2471 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:57:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-20 10:57:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2022-11-20 10:57:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 448 states have (on average 1.4665178571428572) internal successors, (657), 479 states have internal predecessors, (657), 90 states have call successors, (90), 19 states have call predecessors, (90), 18 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 10:57:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 814 transitions. [2022-11-20 10:57:48,510 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 814 transitions. Word has length 26 [2022-11-20 10:57:48,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:57:48,510 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 814 transitions. [2022-11-20 10:57:48,511 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 10:57:48,511 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 814 transitions. [2022-11-20 10:57:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:57:48,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:48,514 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 10:57:48,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:48,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:48,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1514453098, now seen corresponding path program 1 times [2022-11-20 10:57:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:48,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038936893] [2022-11-20 10:57:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:48,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:48,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:48,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:57:48,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:57:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:50,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:57:50,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:50,396 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 10:57:50,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:57:50,620 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 10:57:50,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:57:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038936893] [2022-11-20 10:57:50,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038936893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:57:50,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:57:50,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 10:57:50,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552319151] [2022-11-20 10:57:50,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:57:50,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:57:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:57:50,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:57:50,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:57:50,625 INFO L87 Difference]: Start difference. First operand 557 states and 814 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 10:57:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:51,025 INFO L93 Difference]: Finished difference Result 1122 states and 1647 transitions. [2022-11-20 10:57:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:57:51,026 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 10:57:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:57:51,034 INFO L225 Difference]: With dead ends: 1122 [2022-11-20 10:57:51,034 INFO L226 Difference]: Without dead ends: 566 [2022-11-20 10:57:51,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:57:51,045 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 16 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:57:51,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2429 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:57:51,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-11-20 10:57:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2022-11-20 10:57:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 456 states have (on average 1.4649122807017543) internal successors, (668), 487 states have internal predecessors, (668), 90 states have call successors, (90), 20 states have call predecessors, (90), 19 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 10:57:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 825 transitions. [2022-11-20 10:57:51,129 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 825 transitions. Word has length 27 [2022-11-20 10:57:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:57:51,130 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 825 transitions. [2022-11-20 10:57:51,131 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 10:57:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 825 transitions. [2022-11-20 10:57:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 10:57:51,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:51,140 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 10:57:51,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:51,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:51,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:51,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:51,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1140586578, now seen corresponding path program 2 times [2022-11-20 10:57:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833254923] [2022-11-20 10:57:51,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:57:51,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:51,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:51,401 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:57:51,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:57:52,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:57:52,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:57:52,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:57:52,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:52,994 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 10:57:52,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:57:52,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:57:52,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833254923] [2022-11-20 10:57:52,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833254923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:52,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:52,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:57:52,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611308226] [2022-11-20 10:57:52,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:52,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:57:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:57:52,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:57:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:57:52,998 INFO L87 Difference]: Start difference. First operand 566 states and 825 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 10:57:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:54,085 INFO L93 Difference]: Finished difference Result 1117 states and 1626 transitions. [2022-11-20 10:57:54,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:57:54,086 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 10:57:54,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:57:54,091 INFO L225 Difference]: With dead ends: 1117 [2022-11-20 10:57:54,091 INFO L226 Difference]: Without dead ends: 569 [2022-11-20 10:57:54,094 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 10:57:54,095 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 802 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:57:54,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2453 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:57:54,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-20 10:57:54,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2022-11-20 10:57:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 458 states have (on average 1.4563318777292575) internal successors, (667), 489 states have internal predecessors, (667), 90 states have call successors, (90), 21 states have call predecessors, (90), 20 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 10:57:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 824 transitions. [2022-11-20 10:57:54,154 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 824 transitions. Word has length 30 [2022-11-20 10:57:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:57:54,154 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 824 transitions. [2022-11-20 10:57:54,155 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 10:57:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 824 transitions. [2022-11-20 10:57:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 10:57:54,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:54,157 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 10:57:54,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:54,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1137333636, now seen corresponding path program 1 times [2022-11-20 10:57:54,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:54,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900985671] [2022-11-20 10:57:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:54,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:54,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:54,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:57:54,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:57:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:55,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:57:55,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:55,966 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 10:57:55,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:57:56,425 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 10:57:56,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:57:56,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900985671] [2022-11-20 10:57:56,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900985671] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:57:56,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:57:56,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 10:57:56,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971276937] [2022-11-20 10:57:56,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:57:56,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:57:56,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:57:56,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:57:56,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:57:56,428 INFO L87 Difference]: Start difference. First operand 569 states and 824 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 10:57:57,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:57,791 INFO L93 Difference]: Finished difference Result 1146 states and 1672 transitions. [2022-11-20 10:57:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:57:57,792 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 10:57:57,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:57:57,799 INFO L225 Difference]: With dead ends: 1146 [2022-11-20 10:57:57,799 INFO L226 Difference]: Without dead ends: 578 [2022-11-20 10:57:57,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2022-11-20 10:57:57,809 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 34 mSDsluCounter, 6458 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:57:57,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 7269 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:57:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-11-20 10:57:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2022-11-20 10:57:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 467 states have (on average 1.4475374732334048) internal successors, (676), 498 states have internal predecessors, (676), 90 states have call successors, (90), 21 states have call predecessors, (90), 20 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 10:57:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 833 transitions. [2022-11-20 10:57:57,872 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 833 transitions. Word has length 34 [2022-11-20 10:57:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:57:57,873 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 833 transitions. [2022-11-20 10:57:57,877 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 10:57:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 833 transitions. [2022-11-20 10:57:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:57:57,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:57,886 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 10:57:57,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:58,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:58,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:58,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:58,105 INFO L85 PathProgramCache]: Analyzing trace with hash 51334276, now seen corresponding path program 2 times [2022-11-20 10:57:58,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:58,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889169679] [2022-11-20 10:57:58,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:57:58,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:58,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:58,109 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:57:58,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:57:59,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:57:59,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:57:59,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:57:59,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:59,606 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 10:57:59,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:57:59,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:57:59,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889169679] [2022-11-20 10:57:59,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889169679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:59,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:59,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:57:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004156062] [2022-11-20 10:57:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:59,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:57:59,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:57:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:57:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:57:59,609 INFO L87 Difference]: Start difference. First operand 578 states and 833 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 10:58:00,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:00,165 INFO L93 Difference]: Finished difference Result 595 states and 855 transitions. [2022-11-20 10:58:00,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:58:00,166 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 10:58:00,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:00,169 INFO L225 Difference]: With dead ends: 595 [2022-11-20 10:58:00,170 INFO L226 Difference]: Without dead ends: 578 [2022-11-20 10:58:00,170 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 10:58:00,171 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 759 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:00,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 2365 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:58:00,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-11-20 10:58:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2022-11-20 10:58:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 467 states have (on average 1.4453961456102784) internal successors, (675), 498 states have internal predecessors, (675), 90 states have call successors, (90), 21 states have call predecessors, (90), 20 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 10:58:00,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 832 transitions. [2022-11-20 10:58:00,226 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 832 transitions. Word has length 40 [2022-11-20 10:58:00,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:00,227 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 832 transitions. [2022-11-20 10:58:00,227 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 10:58:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 832 transitions. [2022-11-20 10:58:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 10:58:00,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:00,230 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 10:58:00,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 10:58:00,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:00,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:00,443 INFO L85 PathProgramCache]: Analyzing trace with hash 100929306, now seen corresponding path program 1 times [2022-11-20 10:58:00,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:58:00,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815279327] [2022-11-20 10:58:00,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:00,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:58:00,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:58:00,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:58:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:01,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1698 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 10:58:01,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:02,187 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 10:58:02,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:03,382 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 10:58:03,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:58:03,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815279327] [2022-11-20 10:58:03,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815279327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:58:03,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:58:03,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-20 10:58:03,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928347752] [2022-11-20 10:58:03,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:58:03,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 10:58:03,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:58:03,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 10:58:03,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-20 10:58:03,386 INFO L87 Difference]: Start difference. First operand 578 states and 832 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 10:58:07,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:07,724 INFO L93 Difference]: Finished difference Result 1173 states and 1709 transitions. [2022-11-20 10:58:07,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 10:58:07,725 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 10:58:07,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:07,729 INFO L225 Difference]: With dead ends: 1173 [2022-11-20 10:58:07,729 INFO L226 Difference]: Without dead ends: 596 [2022-11-20 10:58:07,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=890, Invalid=1866, Unknown=0, NotChecked=0, Total=2756 [2022-11-20 10:58:07,734 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 107 mSDsluCounter, 9722 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 10535 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:07,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 10535 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 10:58:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-20 10:58:07,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2022-11-20 10:58:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 485 states have (on average 1.4288659793814433) internal successors, (693), 516 states have internal predecessors, (693), 90 states have call successors, (90), 21 states have call predecessors, (90), 20 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 10:58:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 850 transitions. [2022-11-20 10:58:07,784 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 850 transitions. Word has length 43 [2022-11-20 10:58:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:07,784 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 850 transitions. [2022-11-20 10:58:07,784 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 10:58:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 850 transitions. [2022-11-20 10:58:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:58:07,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:07,786 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 10:58:07,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:08,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:08,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:08,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:08,013 INFO L85 PathProgramCache]: Analyzing trace with hash 481501466, now seen corresponding path program 2 times [2022-11-20 10:58:08,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:58:08,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321534400] [2022-11-20 10:58:08,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:58:08,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:08,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:58:08,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:58:08,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:58:09,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:58:09,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:58:09,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:58:09,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:09,730 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 10:58:09,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:58:09,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:58:09,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321534400] [2022-11-20 10:58:09,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321534400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:09,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:09,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:58:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81081661] [2022-11-20 10:58:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:09,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:58:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:58:09,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:58:09,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:58:09,734 INFO L87 Difference]: Start difference. First operand 596 states and 850 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 10:58:10,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:10,911 INFO L93 Difference]: Finished difference Result 1402 states and 2042 transitions. [2022-11-20 10:58:10,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:58:10,912 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 10:58:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:10,918 INFO L225 Difference]: With dead ends: 1402 [2022-11-20 10:58:10,918 INFO L226 Difference]: Without dead ends: 990 [2022-11-20 10:58:10,920 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 10:58:10,921 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 1357 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:10,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 1486 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:58:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-11-20 10:58:11,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 972. [2022-11-20 10:58:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 814 states have (on average 1.4201474201474202) internal successors, (1156), 835 states have internal predecessors, (1156), 122 states have call successors, (122), 38 states have call predecessors, (122), 35 states have return successors, (134), 106 states have call predecessors, (134), 107 states have call successors, (134) [2022-11-20 10:58:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1412 transitions. [2022-11-20 10:58:11,017 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1412 transitions. Word has length 55 [2022-11-20 10:58:11,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:11,019 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1412 transitions. [2022-11-20 10:58:11,019 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 10:58:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1412 transitions. [2022-11-20 10:58:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 10:58:11,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:11,023 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 10:58:11,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:11,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:11,243 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:11,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1250498751, now seen corresponding path program 1 times [2022-11-20 10:58:11,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:58:11,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863953356] [2022-11-20 10:58:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:11,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:11,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:58:11,247 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:58:11,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:58:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:12,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 10:58:12,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:13,761 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 10:58:13,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:17,559 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 10:58:17,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:58:17,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863953356] [2022-11-20 10:58:17,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863953356] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:58:17,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:58:17,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-11-20 10:58:17,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047196950] [2022-11-20 10:58:17,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:58:17,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-20 10:58:17,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:58:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-20 10:58:17,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2022-11-20 10:58:17,564 INFO L87 Difference]: Start difference. First operand 972 states and 1412 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 10:58:34,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:34,791 INFO L93 Difference]: Finished difference Result 2015 states and 2981 transitions. [2022-11-20 10:58:34,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-11-20 10:58:34,792 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 10:58:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:34,798 INFO L225 Difference]: With dead ends: 2015 [2022-11-20 10:58:34,798 INFO L226 Difference]: Without dead ends: 1020 [2022-11-20 10:58:34,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=3512, Invalid=7830, Unknown=0, NotChecked=0, Total=11342 [2022-11-20 10:58:34,806 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 351 mSDsluCounter, 18416 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 19219 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:34,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 19219 Invalid, 1941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [347 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-20 10:58:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-11-20 10:58:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2022-11-20 10:58:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 862 states have (on average 1.396751740139211) internal successors, (1204), 883 states have internal predecessors, (1204), 122 states have call successors, (122), 38 states have call predecessors, (122), 35 states have return successors, (134), 106 states have call predecessors, (134), 107 states have call successors, (134) [2022-11-20 10:58:34,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1460 transitions. [2022-11-20 10:58:34,902 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1460 transitions. Word has length 67 [2022-11-20 10:58:34,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:34,904 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1460 transitions. [2022-11-20 10:58:34,904 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 10:58:34,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1460 transitions. [2022-11-20 10:58:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 10:58:34,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:34,906 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 10:58:34,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:35,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:35,119 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:35,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:35,119 INFO L85 PathProgramCache]: Analyzing trace with hash -508543809, now seen corresponding path program 2 times [2022-11-20 10:58:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:58:35,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225616264] [2022-11-20 10:58:35,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:58:35,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:35,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:58:35,123 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:58:35,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:58:36,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:58:36,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:58:36,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:58:36,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:36,701 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 10:58:36,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:58:36,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:58:36,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225616264] [2022-11-20 10:58:36,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225616264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:36,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:36,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:36,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721743300] [2022-11-20 10:58:36,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:36,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:36,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:58:36,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:36,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:36,703 INFO L87 Difference]: Start difference. First operand 1020 states and 1460 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 10:58:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:37,042 INFO L93 Difference]: Finished difference Result 1682 states and 2443 transitions. [2022-11-20 10:58:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:37,043 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 10:58:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:37,055 INFO L225 Difference]: With dead ends: 1682 [2022-11-20 10:58:37,056 INFO L226 Difference]: Without dead ends: 1664 [2022-11-20 10:58:37,057 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 10:58:37,060 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 753 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1358 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 10:58:37,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1358 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:58:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-11-20 10:58:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1616. [2022-11-20 10:58:37,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1371 states have (on average 1.4194018964259665) internal successors, (1946), 1406 states have internal predecessors, (1946), 185 states have call successors, (185), 61 states have call predecessors, (185), 59 states have return successors, (229), 161 states have call predecessors, (229), 170 states have call successors, (229) [2022-11-20 10:58:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2360 transitions. [2022-11-20 10:58:37,221 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2360 transitions. Word has length 91 [2022-11-20 10:58:37,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:37,222 INFO L495 AbstractCegarLoop]: Abstraction has 1616 states and 2360 transitions. [2022-11-20 10:58:37,223 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 10:58:37,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2360 transitions. [2022-11-20 10:58:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 10:58:37,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:37,224 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 10:58:37,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:37,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:37,443 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1803524901, now seen corresponding path program 1 times [2022-11-20 10:58:37,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:58:37,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815870223] [2022-11-20 10:58:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:37,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:58:37,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:58:37,448 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:58:37,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:58:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:39,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-20 10:58:39,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:42,433 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 10:58:42,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:56,120 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 10:58:56,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:58:56,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815870223] [2022-11-20 10:58:56,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815870223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:58:56,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:58:56,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 98 [2022-11-20 10:58:56,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061646807] [2022-11-20 10:58:56,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:58:56,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-11-20 10:58:56,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:58:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-11-20 10:58:56,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=7009, Unknown=0, NotChecked=0, Total=9506 [2022-11-20 10:58:56,127 INFO L87 Difference]: Start difference. First operand 1616 states and 2360 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 11:00:20,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:00:20,816 INFO L93 Difference]: Finished difference Result 3519 states and 5274 transitions. [2022-11-20 11:00:20,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-11-20 11:00:20,817 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 11:00:20,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:00:20,826 INFO L225 Difference]: With dead ends: 3519 [2022-11-20 11:00:20,827 INFO L226 Difference]: Without dead ends: 1760 [2022-11-20 11:00:20,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3589 ImplicationChecksByTransitivity, 80.9s TimeCoverageRelationStatistics Valid=13940, Invalid=32070, Unknown=0, NotChecked=0, Total=46010 [2022-11-20 11:00:20,844 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 1307 mSDsluCounter, 39766 mSDsCounter, 0 mSdLazyCounter, 6074 mSolverCounterSat, 1313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 40581 SdHoareTripleChecker+Invalid, 7387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1313 IncrementalHoareTripleChecker+Valid, 6074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:00:20,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 40581 Invalid, 7387 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1313 Valid, 6074 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2022-11-20 11:00:20,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2022-11-20 11:00:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1760. [2022-11-20 11:00:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1515 states have (on average 1.3795379537953796) internal successors, (2090), 1550 states have internal predecessors, (2090), 185 states have call successors, (185), 61 states have call predecessors, (185), 59 states have return successors, (229), 161 states have call predecessors, (229), 170 states have call successors, (229) [2022-11-20 11:00:21,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2504 transitions. [2022-11-20 11:00:21,024 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2504 transitions. Word has length 89 [2022-11-20 11:00:21,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:00:21,025 INFO L495 AbstractCegarLoop]: Abstraction has 1760 states and 2504 transitions. [2022-11-20 11:00:21,025 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 11:00:21,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2504 transitions. [2022-11-20 11:00:21,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-20 11:00:21,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:00:21,027 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 11:00:21,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:21,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:21,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:00:21,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:00:21,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1832641317, now seen corresponding path program 2 times [2022-11-20 11:00:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:00:21,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77550098] [2022-11-20 11:00:21,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:00:21,254 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 11:00:21,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:00:21,255 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:21,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:22,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:00:22,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:00:22,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:00:22,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:00:22,981 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 11:00:22,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:00:22,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:00:22,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77550098] [2022-11-20 11:00:22,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77550098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:00:22,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:00:22,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:00:22,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262700298] [2022-11-20 11:00:22,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:00:22,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:00:22,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:00:22,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:00:22,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:00:22,986 INFO L87 Difference]: Start difference. First operand 1760 states and 2504 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 11:00:23,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:00:23,381 INFO L93 Difference]: Finished difference Result 1805 states and 2569 transitions. [2022-11-20 11:00:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:00:23,381 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 11:00:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:00:23,390 INFO L225 Difference]: With dead ends: 1805 [2022-11-20 11:00:23,391 INFO L226 Difference]: Without dead ends: 1801 [2022-11-20 11:00:23,392 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 11:00:23,393 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 61 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:00:23,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1493 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:00:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2022-11-20 11:00:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1793. [2022-11-20 11:00:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1546 states have (on average 1.3809831824062095) internal successors, (2135), 1578 states have internal predecessors, (2135), 186 states have call successors, (186), 63 states have call predecessors, (186), 60 states have return successors, (230), 162 states have call predecessors, (230), 171 states have call successors, (230) [2022-11-20 11:00:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2551 transitions. [2022-11-20 11:00:23,570 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2551 transitions. Word has length 137 [2022-11-20 11:00:23,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:00:23,570 INFO L495 AbstractCegarLoop]: Abstraction has 1793 states and 2551 transitions. [2022-11-20 11:00:23,571 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 11:00:23,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2551 transitions. [2022-11-20 11:00:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 11:00:23,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:00:23,581 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 11:00:23,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:00:23,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:23,781 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:00:23,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:00:23,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2136261616, now seen corresponding path program 1 times [2022-11-20 11:00:23,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:00:23,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638501072] [2022-11-20 11:00:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:00:23,787 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 11:00:23,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:00:23,788 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:23,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:00:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:00:25,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-20 11:00:25,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:00:37,519 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 11:00:37,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:25,025 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 11:01:25,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:25,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638501072] [2022-11-20 11:01:25,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638501072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:25,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:01:25,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 194 [2022-11-20 11:01:25,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103061615] [2022-11-20 11:01:25,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:25,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-11-20 11:01:25,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:25,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-11-20 11:01:25,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2022-11-20 11:01:25,035 INFO L87 Difference]: Start difference. First operand 1793 states and 2551 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 11:11:04,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:04,085 INFO L93 Difference]: Finished difference Result 4545 states and 6760 transitions. [2022-11-20 11:11:04,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-20 11:11:04,086 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 11:11:04,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:04,099 INFO L225 Difference]: With dead ends: 4545 [2022-11-20 11:11:04,099 INFO L226 Difference]: Without dead ends: 2849 [2022-11-20 11:11:04,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22420 ImplicationChecksByTransitivity, 510.8s TimeCoverageRelationStatistics Valid=64697, Invalid=163309, Unknown=0, NotChecked=0, Total=228006 [2022-11-20 11:11:04,135 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 5060 mSDsluCounter, 79472 mSDsCounter, 0 mSdLazyCounter, 41757 mSolverCounterSat, 4829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 80312 SdHoareTripleChecker+Invalid, 46586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 4829 IncrementalHoareTripleChecker+Valid, 41757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:04,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5060 Valid, 80312 Invalid, 46586 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [4829 Valid, 41757 Invalid, 0 Unknown, 0 Unchecked, 114.7s Time] [2022-11-20 11:11:04,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-11-20 11:11:04,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2473. [2022-11-20 11:11:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2222 states have (on average 1.436093609360936) internal successors, (3191), 2254 states have internal predecessors, (3191), 186 states have call successors, (186), 67 states have call predecessors, (186), 64 states have return successors, (230), 162 states have call predecessors, (230), 171 states have call successors, (230) [2022-11-20 11:11:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3607 transitions. [2022-11-20 11:11:04,497 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3607 transitions. Word has length 139 [2022-11-20 11:11:04,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:04,497 INFO L495 AbstractCegarLoop]: Abstraction has 2473 states and 3607 transitions. [2022-11-20 11:11:04,498 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 11:11:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3607 transitions. [2022-11-20 11:11:04,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-20 11:11:04,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:04,502 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 11:11:04,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 11:11:04,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:11:04,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:11:04,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1289311216, now seen corresponding path program 2 times [2022-11-20 11:11:04,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:11:04,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182981262] [2022-11-20 11:11:04,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:11:04,730 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 11:11:04,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:11:04,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:11:04,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:11:06,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:11:06,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:11:06,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:11:06,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:11:06,709 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 11:11:06,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:11:06,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:11:06,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182981262] [2022-11-20 11:11:06,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182981262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:06,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:06,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:11:06,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141976352] [2022-11-20 11:11:06,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:06,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:11:06,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:11:06,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:11:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:11:06,713 INFO L87 Difference]: Start difference. First operand 2473 states and 3607 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 11:11:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:07,235 INFO L93 Difference]: Finished difference Result 2587 states and 3764 transitions. [2022-11-20 11:11:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:11:07,236 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 11:11:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:07,250 INFO L225 Difference]: With dead ends: 2587 [2022-11-20 11:11:07,250 INFO L226 Difference]: Without dead ends: 2520 [2022-11-20 11:11:07,252 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 11:11:07,253 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 45 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:07,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1641 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:11:07,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-11-20 11:11:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2476. [2022-11-20 11:11:07,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2225 states have (on average 1.4359550561797754) internal successors, (3195), 2257 states have internal predecessors, (3195), 186 states have call successors, (186), 67 states have call predecessors, (186), 64 states have return successors, (230), 162 states have call predecessors, (230), 171 states have call successors, (230) [2022-11-20 11:11:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3611 transitions. [2022-11-20 11:11:07,596 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3611 transitions. Word has length 235 [2022-11-20 11:11:07,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:07,596 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3611 transitions. [2022-11-20 11:11:07,597 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 11:11:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3611 transitions. [2022-11-20 11:11:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-20 11:11:07,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:07,601 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 11:11:07,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:11:07,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:11:07,820 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:11:07,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:07,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1990375794, now seen corresponding path program 1 times [2022-11-20 11:11:07,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:11:07,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578919005] [2022-11-20 11:11:07,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:07,823 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 11:11:07,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:11:07,824 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -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 11:11:07,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ce3782-18b2-4aef-8fc5-ee12b8291308/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:11:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:10,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 3724 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-20 11:11:10,610 INFO L286 TraceCheckSpWp]: Computing forward predicates...